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Anatomy Week 1-7
Nightingale College Test Prep Questions
| Question | Answer |
|---|---|
| The sternal region is ________ to the scapular region. | Anterior |
| Physiology is defined as the study of the _____ of a living organism. | Function |
| A coronal section through the human body can... | pass through both ears. |
| Which branch of anatomy studies the structural changes that occur as one ages? | Developmental Anatomy |
| The ________ system is involved in immunity. | Lymphatic |
| The dorsal body cavity is subdivided into a cranial cavity and a spinal cavity. (T/F) | True |
| Which structure is located entirely within the right upper quadrant? | Gallbladder |
| The space that encloses the brain and spinal cord forms one continuous cavity called the _____ cavity. | Dorsal |
| The knee is ________ to the foot. | Proximal |
| The chest is ________ to the abdomen. | Superior |
| Atoms with fewer than eight electrons in the outer energy level will attempt to lose, gain, or share electrons with other atoms to achieve stability. This tendency is called the... | octet rule. |
| For sodium to transform from a neutral atom to a positive ion, it must: | lose an electron. |
| What term is used to describe all of the chemical reactions that occur in body cells? | Metabolism |
| Which subatomic particles carry a charge? | Protons and Electrons |
| The most abundant element essential to life is... | carbon. |
| The reaction between hydrogen and oxygen needed to form water is an example of a: | synthesis reaction. |
| A molecule that is polar: | can form a hydrogen bond AND has an unequal charge. |
| The total number of electrons in a neutral atom equals the number of: | protons in its nucleus. |
| A chemical bond formed by the sharing of one or more pairs of electrons between the outer shells of two atoms is called a(n) _____ bond. | covalent |
| Ionic bonds are chemical bonds formed by the: | transfer of electrons from one atom to another. |
| The gluteal region is ________ to the popliteal region. | superior |
| _____ refers to an inner region of an organ, whereas _____ refers to an outer region or layer of an organ. | Medullary; cortical |
| Another name for the midsagittal plane is | median |
| Anatomy is defined as the study of the _____ of a living organism. | structure |
| The body as a whole can be subdivided into two major divisions. They are | axial and appendicular |
| The abdominopelvic cavity is subdivided into the _____ cavities. | abdominal and pelvic |
| An example of a tissue in the body is | epithelium |
| As an anatomical region, lumbar refers to | the infero-medial aspect of the back |
| The brain is ________ to the skull. | deep |
| Muscles are ________ to the skin. | deep |
| Regarding directional terms, superior means | toward the head. |
| Which organ is not found in the ventral body cavity? | spinal cord |
| The plane that divides the body into front and back portions is the _____ plane. | coronal |
| A frontal plane is the same as a ________ plane. | coronal |
| The body as a whole can be subdivided into two major divisions. They are | axial and appendicular |
| The inguinal region lies | where the thigh joins the trunk |
| A sagittal section divides the body into _____ portions. | right and left |
| Popliteal refers to the: | area behind the knee. |
| The smallest living units of structure and function in the body are: | cells |
| Which of the following does not describe anatomical position? | Arms extended from the shoulders, palms up |
| The number of abdominal regions is: | nine |
| A surgeon removing a gallbladder should know to find it in the _____ region. | right hypochondriac |
| The lungs are located in the: | thoracic cavity. |
| Mitochondria, Golgi apparatus, and endoplasmic reticulum are examples of: | organelles |
| Blood production is a function of which system? | Skeletal |
| The structure that is called the “powerhouse” of the cell is the: | mitochondria |
| When many similar cells specialize to perform a certain function, it is referred to as a(n): | tissue |
| The plane that divides the body into upper and lower parts is the _____ plane. | transverse |
| The reproductive system includes all of the following except the: (testes/ovaries/ureter/penis). | ureter |
| If your reference point is “farthest from the trunk of the body” versus “nearest to the trunk of the body,” where does the knee lie in relation to the ankle? | Proximal |
| The abdominopelvic cavity contains all of the following except the: (stomach/pancreas/heart/reproductive organs) | heart |
| What is the anatomical direction term that means nearer the surface? | Superficial |
| An x-ray technician has been asked to make x-ray films of the liver. Which of the abdominopelvic regions must be included? | Right hypochondriac, epigastric, and left hypochondriac |
| A plane through the body that divides the body into right and left sides is called: | sagittal |
| From smallest to largest, the levels of organization of the body are: | chemical, organelle, cellular, tissue, organ, system, organism. |
| A frontal section divides the body into _____ portions. | front and back |
| An organization of many similar cells that are specialized to perform a certain function is called a(n): | tissue |
| The gallbladder lies in the: | abdominal cavity |
| The mediastinum contains all of the following except the: | right lung |
| Molecules are: | atoms combined to form larger chemical aggregates. |
| Several kinds of tissues working together are termed a(n): | organ |
| The abdominal quadrants are located with what structure as their midpoint? | Umbilicus |
| Two major cavities of the human body are: | ventral/dorsal. |
| An organ is one organizational level higher than a(n): | tissue |
| A plane through the body that divides the body into anterior and posterior portions is: | coronal |
| Which of the following is not one of the characteristics of life? | Balance |
| The element oxygen has an atomic number of 8, which means it contains: | eight protons |
| Which type of chemical reaction results in the breakdown of a complex substance into two or more simpler substances? | decomposition reaction |
| A substance that cannot be broken down or decomposed into two or more different substances is called a(n) | element |
| The water molecule has two distinct ends, each with a partial electrical charge. Because of this structure, water is said to be | polar |
| Hydrolysis _____ a water molecule. | breaks down compounds by adding |
| The type of chemical reaction most likely to require energy is a(n) _____ reaction. | synthesis |
| Which of the following is not a subatomic particle? | Radon |
| Chemical bonds formed by the sharing of electrons are called: | covalent |
| The atomic number tells you the | number of protons in the nucleus. |
| An element that contains the same number of protons but different numbers of neutrons is called a(n) | isotope |
| As a result of which reaction during catabolism is a water molecule added to break a larger compound into smaller subunits? | hydrolysis |
| Salts: | can form as the result of a chemical reaction between acids and bases, are electrolytes, and will form crystals if the water is removed |
| A force holding two atoms together is a(n) | chemical bond. |
| As the concentration of hydroxide ions (OH–) increases, the: | solution becomes more basic and pH rises |
| A weak acid: | dissociates very little in solution. |
| Acids | release hydrogen ions (H+). |
| Electrolytes are: | called cations if they have a positive charge. |
| What decomposition reaction requires the addition of a water molecule to break a bond? | hydrolysis |
| The elements carbon, hydrogen, oxygen, and nitrogen make up which percentage of the human body? | 96% |
| Acids, bases, and salts belong to a large group of compounds called | electrolytes |
| An atom can be described as chemically inert if its outermost electron shell contains _____ electrons. | eight |
| Hydrogen bonds result from unequal charge distribution on a molecule. Such molecules are said to be | polar |
| As the concentration of hydrogen ions increases, the pH goes _____, and the solution becomes more _____. | down; acidic |
| The octet rule refers to the: | stability of the atom when there are eight electrons in the outermost energy level. |
| Which of the following is not one of the major elements present in the human body? (oxygen/zinc/carbon/potassium) | Zinc |
| A solution that contains a greater concentration of hydroxide ions (OH–) than hydrogen ions (H+) is a(n) _____ solution. | alkaline (basic) |
| In the presence of a base, red litmus paper will: | turn blue |
| An example of an element would be: | Ne |
| The process of the digestion of food is an example of which type of reaction? | Decomposition |
| The approximate pH of gastric fluid is: | 2 |
| The formation of sucrose involves the removal of a molecule of water. This is called: | dehydration synthesis. |
| A magnesium atom has an atomic number of 12, an atomic mass of 25, and a +2 charge. This atom would contain _____ protons, _____ neutrons, and _____ electrons. | 12; 13; 10 |
| A negatively charged subatomic particle that moves around the nucleus is a(n): | electron |
| The most abundant and important compound(s) in the body is(are): | water |
| When atoms combine, they may gain, lose, or share: | electrons |
| The atomic number of carbon is 6. How many unpaired electrons are in its outer shell? | Four |
| The hydrogen isotope tritium consists of: | one proton and two neutrons. |
| Carbon has an atomic number of 6. The number of electrons found in the first shell is: | two |
| Which of the following elements is least likely to combine with another element? (hydrogen/helium/oxygen/carbon) | helium |
| An ionic bond is formed by: | a positive and a negative ion attracting each other. |
| The type of reaction in which substances are combined to form more complex substances is called a(n) _____ reaction. | synthesis |
| An example of a catabolic process is: | hydrolysis |
| Which of the following represents properties of water? | high specific heat, high heat of vaporization, strong polarity |
| The study of metabolism includes examination of: | catabolism, anabolism, ATP requirements |
| Approximately what percentage of the body weight of an adult female is water? | 50% |
| Substances that accept hydrogen ions are called: | bases |
| Which of the following bonds are the weakest? (ionic/hydrogen/electrovalent/covalent) | hydrogen |
| The kind of element is determined by the number of: | protons |
| As the concentration of hydrogen ions (H+) increases, the: | solution becomes more acidic. |
| An isotope of an element contains different numbers of ____ from other atoms of the same element. | neutrons |
| Which of the following represents a trace element in the body? | Iron |
| AB + CD → AD + CB is an example of a(n) _____ reaction. | exchange |
| Acids: | are proton donors, taste sour, and release hydrogen ions in an aqueous solution |
| Atomic mass is determined by the number of: | protons and neutrons. |
| Often referred to as the “power plant” of the cell, which organelle is the site of ATP production? | mitochondrion |
| Which of the following is a type of cell extension that lines the intestines and other areas of the body? (cilia, flagella, microvilli, microfilaments) | microvilli |
| Cisternae of this organelle are continuous with the nuclear envelope. | rough endoplasmic reticulum |
| Ribosomes are organelles that | float in the cytoplasm and attach to the endoplasmic reticulum. |
| Of the following, the only organelle that has a double membrane structure is the (mitochondria, golgi apparatus, endoplasmic reticulum, centriole) | mitochondrion |
| In the matrix of the plasma membrane, a variety of proteins are embedded. Some of these proteins serve as passageway for Na+ ions or glucose. These proteins are called | transport proteins |
| Phospholipids of the plasma membrane are arranged | as a bilayer with their nonpolar tails sandwiched between the polar heads |
| Which area of the cytoplasm near the nucleus coordinates the building and breaking of microtubules in the cell? | centrosome |
| A spherical membrane-bound structure that contains the genetic material of the cell and is often referred to as the “command center” of the cell is the | nucleus |
| Ribosomes may be either free within the cytoplasm or bound to a membrane system known as the | rough endoplasmic reticulum |
| The outer boundary of a human cell is called the | plasma membrane |
| Which of the following statements about integral proteins in the plasma membrane is false? (Some attach to the glycocalyx/Most extend all the way through the membrane/They are more abundant by volume than the membrane phospholipids. ) | They are more abundant by volume than the membrane phospholipids. |
| This organelle has both a cis and a trans face. | Golgi apparatus |
| This organelle is characterized by folded membranes called cristae. | mitochondria |
| This membranous organelle contains oxidase and catalase enzymes. | peroxisome |
| This organelle is primarily a sac of powerful digestive enzymes called acid hydrolases. | lysosome |
| Which of the following cytoskeleton elements are the largest in diameter? (intermediate filaments/microfilaments/centrioles/microtubles) | microtubules (microfilaments->intermediary filaments->microtubles) |
| This organelle primarily modifies products from the rough ER, and it resembles a stack of hollow saucers, one cupped inside the next. | Golgi apparatus |
| This organelle is numerous in liver and kidney cells. | peroxisome |
| Which of the following is not a cytoskeleton element? (intermediate filament/microfilament/centriole/microtuble) | centriole |
| The inside of the cell is composed largely of a gel-like substance called | cytoplasm |
| This membranous organelle is the site of protein synthesis for proteins that are secreted by the cell. | rough endoplasmic reticulum |
| The plasma membrane is composed of all of the following except (phospholipids/cholesterol/glycoproteins/tubulin protein) | tubulin protein |
| A major function of the cell membrane is to | control what enters and leaves the cell |
| Which type of junction is formed when membrane channels of adjacent plasma membranes adhere to each other? | gap junction |
| Skin cells (epithelial) are held tightly together by: | desmosomes |
| Which of the following is not true about ribosomes? (Contain protein/Composed of a large unit and a small unit/Surrounded by a membrane structure/Contain RNA) | Surrounded by a membrane structure |
| Which cell extension lacks a central pair of microtubules, is not found in blood cells, and functions in the kidney to monitor urine flow? | Primary cilium |
| The barrier function of the plasma membrane is accomplished by the: | phospholipid bilayer |
| The nucleolus is composed chiefly of: | rRNA |
| The structure in cells that is associated with the enzymatic breakdown (digestion) of foreign material is the: | lysosome |
| Which of the following is not a function of the integral membrane proteins? (Acting as receptors/Signal transduction/Identification of "self"/All of the above) | All of the above are functions of the integral membrane proteins. |
| Rafts are stiff groupings of membrane molecules. What is their function? | Help organize the various components of the plasma membrane, Play an important role in the pinching of a parent cell into two daughter cells, Sometimes allow the cell to form depressions that form a means of carrying substances into the cell |
| Which organelles consist of vesicles that have pinched off from the Golgi apparatus? | Lysosomes |
| Which of the following recognize and destroy nonself cells? (gland cell/immune cells/nerve cells/red blood cells) | Immune Cells |
| Main cell structures include all of the following except: (organelles, plasma membrane, interstitial fluid, cytoplasm) | interstitial fluid |
| The fundamental organizational unit of life is the: | cell |
| Which of the following is not a function of the smooth endoplasmic reticulum? (Provides a site for ribosome attachment Supplies membrane for use throughout the cell/Makes steroid hormones/Makes glycoproteins) | Provides a site for ribosome attachment |
| Which are the organelles that allow for the recycling of amino acids in the cell? (Peroxisomes/Mitochondria/Ribosomes/Proteasomes) | Proteasomes |
| The largest human cell, measuring about 150 μm, is a: | female sex cell or ovum |
| Granules or threads within the nucleus are called: | chromatin |
| Which of the following organelles is considered a nonmembranous organelle? (Golgi apparatus/Ribosome/Mitochondria) | Ribosome |
| The inner membrane of what double-membrane structure is contorted into folds called cristae? | Mitochondrion |
| The ____ is often called the microtubule organizing center. | centrosome |
| A list of the cell fibers from largest to smallest would read: | microtubules, intermediate filaments, microfilaments. |
| The cell extension that contains microfilaments is called: | microvilli |
| Which of the following is not true of the rough endoplasmic reticulum? (It makes lipids and carbohydrates/It is made of broad, flattened sacs/It has many ribosomes attached to it/All of the above are true of rough endoplasmic reticulum.) | It makes lipids and carbohydrates. |
| Damage to the centrosome and centrioles in a cell would have the greatest impact on which cell function? | Cell division |
| DNA is a major constituent of which cell organelle? | Nucleus |
| The structure that separates the contents of a cell from the surrounding tissue is known as: | plasma membrane |
| The membranous structure containing substances that protect the cell from harm are: | lysosomes and peroxisomes |
| ATP production occurs within which organelle? | Mitochondrion |
| Tiny indentations of the plasma membrane that resemble caves are called: | caveolae |
| The cell extension that assists epithelial cells in absorption is called: | microvilli |
| Which cell fiber serves as part of our “cellular muscles?” | Microfilament |
| The enzyme catalase is an important chemical in the functioning of the: | peroxisomes |
| Which organelle processes and packages material to be secreted? | Golgi apparatus |
| What are the structures or functions of the proteasome? | Breaking down abnormal and misfolded proteins released from the ER, Looks like a hollow cylindrical drum made of protein subunits, Requires the small protein called ubiquitin to pull proteins in |
| Projections from the cell that move materials and mucus are called: | cilia |
| The identification function of the cell membrane is carried out by the: | glycoprotein molecules |
| Which of the following contains intercalated disks? (smooth muscle/striated muscle/cardiac muscle/blood) | cardiac muscle |
| Stratified squamous (keratinized) epithelial cells are found in the | epidermis |
| The structure that lies deep to the dermis and forms a connection between the skin and the underlying structures of the body is the | hypodermis |
| Cells in a tissue are surrounded by or embedded in a complex extracellular material called a | matrix |
| The epidermis is composed of several types of epithelial cells. One type, called keratinocytes, become filled with a tough, fibrous protein called | keratin |
| The fluid environment that fills the spaces between the cells of the body is called | extracellular matrix |
| The union of basal and fibroreticular laminae forms the | basement membrane |
| A lubricating substance produced by goblet cells is called | mucus |
| The skin glands include three kinds of microscopic glands. They are the __________ glands. | sweat, sebaceous, and ceruminous |
| The conducting unit of the nerve tissue is the | neuron |
| Which of the following is an example of a serous membrane? (pleura/peritoneum/pericardium/all of the above) | All of these are examples of a serous membrane. |
| All glands in the body can be classified as either | exocrine or endocrine |
| Adipose tissue is | a storage tissue (for fat) |
| Which is the most superficial layer of the epidermis? | stratum corneum (stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum are all 5 layers in order) |
| The mixed secretions of sebaceous and ceruminous glands form a brown waxy substance called the | cerumen |
| Besides water, extracellular matrix contains | proteins and proteoglycans |
| Each hair follicle has a small bundle of involuntary muscles attached to it called the | arrector pili muscle |
| The most abundant and widespread tissue in the body is | connective |
| Which of the following is not a principal type of tissue? (cardiac, epithelial, nervous, connective, muscle) | cardiac |
| The External Ear is composed of what type of cartilage? | elastic cartilage |
| The _____ junction “glues” the epidermis and dermis together and provides mechanical support for the epidermis. | dermoepidermal |
| Which of the following is not a type of connective tissue? (cardiac, blood, adipose, cartilage) | cardiac |
| Around the sixth month of pregnancy, the developing fetus is almost entirely covered by a fine soft hair coat called the | lanugo |
| The two major categories of body membranes are | epithelial and connective |
| The connective tissue membranes that line the spaces between bones and joints are called _____ membranes. | synovial |
| Which of the following tissues lacks a direct blood supply and consequently heals very slowly? (bone, muscle, adipose, cartilage) | cartilage |
| Of the many different kinds of protein compounds in the body, which is the most abundant? | collagen |
| Which of the following is not a primary germ layer? (endoderm, ectoderm, mesoderm, epiderm) | epiderm |
| The basic determinant of skin color is | melanin |
| The two main layers that compose the skin are the dermis and | epidermis |
| The strongest and most durable type of cartilage is | fibrocartilage |
| Which of the following contains osteocytes? | bone |
| Which type of tissue has cube-shaped cells and can be found lining the kidney tubules? | simple cuboidal epithelium |
| The dermis is composed of two layers, a thin papillary layer and a thick _____ layer. | reticular |
| Which principal type of tissue covers and protects body surfaces and lines body cavities? | epithelial |
| Bone marrow is a specialized type of soft, diffuse connective tissue called | myeloid tissue |
| Which lower leg bone is smaller and is located laterally? | fibula |
| Which of the following is a facial bone? (zygomatic bone, occipital bone, parietal bone, all of the above) | zygomatic bone |
| Cartilage is classified as _____ tissue. | connective |
| Compact bone contains many cylinder-shaped structural units called | osteons |
| Anteriorly, each rib of the first seven pairs attaches to the | sternum |
| Which of the following is not a type of bone? (flat, irregular, short, long, regular) | regular |
| The extracellular components of bone matrix are | hard and calcified |
| What structures normally hold the foot bones firmly in their arched positions? | ligaments and tendons |
| Which of these pelvic bones is the most anteriorly placed? | pubis |
| The main shaft-like portion of a long bone is the | diaphysis |
| Which of the following is not a bone in the leg? (mandible, femur, fibula, tibia) | mandible |
| Which two bones compose the shoulder girdle? | clavicle and scapula |
| Which two bones join to form the posterior part of the hard palate? | palatine |
| The vertebral bones that support the small (lower section) of the back are the | lumbar vertebrae |
| The human skeleton system consists of two divisions. They are | axial and appendicular |
| The largest sesamoid bone in the body is the | patella |
| Fibrocartilage can be found in the | pubis symphysis |
| The bone that claims the distinction of being the only bone in the body that articulates with no other bones is the | hyoid |
| If you are working on an archeological dig and find the remains of a human pelvis with a subpubic angle of 110 degrees, you can assume that this pelvis belongs to a (male or female) | female |
| The joint between the pubic portions of each coxal bone is the | pubic symphysis |
| Spongy bone is characterized by | open spaces partially filled by an assemblage of needle-like structures. |
| The dense, white fibrous membrane that covers bone except at joint surfaces is the | periosteum |
| Which of the following bones form the framework of the hand? (metacarpals, metatarsals, carpals, and tarsals | metacarpals |
| Why are the last two pairs of false ribs designated as floating ribs? | Floating ribs do not attach even indirectly to the sternum. |
| The very small bone that lies just posterior and lateral to each nasal bone is the | lacrimal |
| The medial part of the anterior chest wall is supported by a dagger-shaped bone called the | sternum |
| Which of the following is(are) not in the appendicular skeleton? (vertebrae, tarsals, femur, clavicle) | vertebrae |
| _____ fibers are present in all three types of cartilage, but they are most numerous in fibrocartilage. | Collagenous |
| The most common type of cartilage is | hyaline |
| The term _____ is used to describe a muscle that directly performs a specific movement. | agonist |
| The innermost muscle of the abdominal wall is the | transverse abdominis. |
| The common tendon of the gastrocnemius and soleus is called the | calcaneal tendon (achilles tendon) |
| Muscles with this type of muscle fascicle arrangement are either fusiform or straplike in appearance. | parallel |
| The individual muscle fibers are covered by a connective tissue membrane called the | endomysium |
| The point of attachment that does not move when the muscle contracts is the | origin |
| The long axes of the fascicles run parallel to the long axis of the muscle is a description of this type of fascicle arrangement. | parallel |
| A muscle with fascicles that insert into only one side of the tendon is categorized as | unipennate |
| In addition to the Pectoralis major, another muscle that displays this pattern of fascicle arrangement is Latissimus dorsi. | convergent |
| An example of a muscle with this type of fascicle arrangement is the orbicularis oris. | circular |
| The Sartorius muscle, a thin straplike muscle would have muscle fascicles arranged in | parallel |
| The fibrous connective tissue that surrounds the entire muscle and is outside the epimysium and tendon is called the | fascia |
| This arrangement of muscle fascicles tends to be triangular in shape. The Pectoralis major is an example of a muscle with this type of muscle fascicle arrangement. | convergent |
| The muscle fascicle arrangement for Orbicularis oris is best characterized as | circular |
| The continuous low level of sustained contraction maintained by all skeletal muscles is muscle | tone |
| A muscle with fascicles that insert into the tendon from both sidesis categorized as | bipennate |
| The biceps brachii has this fascicle arrangement, which maximizes the range of motion possible. | parallel |
| Muscles that move the wrist, hand, and fingers can be | extrinsic or intrinsic |
| The muscle that helps hold the scapula against the thorax and is useful in pushing or punching movements is the | serratus anterior |
| Muscles that move the forearm include which of the following? (brachioradialis, pronator teres, biceps brachii, all of the above) | All of these are correct. |
| The Achilles tendon is common to both the gastrocnemius and the soleus. (T/F) | True |
| The muscle that extends and adducts the arm is the: | latissimus dorsi |
| The origin of a muscle is on the femur, and the insertion is on the tibia. When it contracts, it bends the knee. Its fibers run parallel to the body. Which of the following terms might be part of its name? | Flexor |
| The pectoralis major muscle is an example of a _____ muscle. | convergent |
| The action of the brachialis muscle is to _____ the forearm. | flex |
| Another name for a skeletal muscle cell is a(n): | muscle fiber |
| The muscle that allows the thumb to be drawn across the palm to touch the tip of any finger is the: | opponens pollicis |
| The latissimus dorsi muscle is an example of a _____ muscle. | spiral |
| In pushing (pressing) a weight from shoulder height to above the head, which of the following muscles is least utilized? (Triceps Brachii, Biceps Brachii, Deltoid) | Biceps Brachii |
| Muscles located on the lower leg move the: | foot |
| When an athlete injures a muscle of the hamstring group, the injury is on the: | posterior thigh |
| What do the muscles do to the thorax when breathing? | When the diaphragm contracts, it decreases the volume of the thoracic cavity and expels air from the lungs |
| The muscle that flexes the semipronated or semisupinated forearm is the: | brachioradialis |
| The sternocleidomastoid muscle is an example of a muscle named for its: | points of attachment |
| The muscle that raises or lowers the shoulders or shrugs them is the: | trapezius |
| The origin of a muscle is on the femur, and the insertion is on the tibia. When it contracts, it bends the knee. What is the knee doing? | The knee is acting as a fulcrum. |
| The most common type of lever in the body is a _____-class lever. | third |
| Skeletal muscles constitute approximately ____ of our body weight. | 50% |
| The posterior arm muscle that extends the forearm is the: | triceps brachii |
| The teres major and teres minor muscles move the: | arm |
| What is true about the muscles of the head? | They are paired muscles. They have different actions depending on whether one or both parts of the pair contract. |
| The flexor muscles that move the fingers are mostly located on the: | anterior medial surface of the forearm |
| Which of the following is not a muscle that moves the thigh? (Adductor Longus, Gracilis, Iliopsoas, Sacrospinalis) | Sacrospinalis |
| Muscles that move the upper arm originate on the: | clavicle and scapula |
| Which of the following muscles has fibers on a transverse plane? (rectus abdominis, external oblique, transverse abdominis, internal intercostals) | transverse abdominis |
| Which of the following body systems assists the muscles in maintaining posture? (digestive, endocrine, excretory, all of the above) | all of the above |
| Which of the following is not a group of pennate muscles? (bipennate, tripennate, multipennate, all are correct) | tripennate |
| Which of the following is not a muscle that moves the foot? (sartorius, peroneus longus, tibialis anterior, soleus) | sartorius |
| There are more than 600 muscles in the body. (T/F) | True |
| Muscles may be named according to: | function, direction of fibers, and points of attachment |
| All of the following muscles are part of the rotator cuff muscles except the: (deltoid, infraspinatus, supraspinatus, teres minor) | deltoid |
| Moving from superficial to deep, the connective tissue components would be: | epimysium, perimysium, endomysium |
| Muscles that contract at the same time as the prime mover are called: | synergists & fixators (is a type of synergist) |
| Which of the following is not a posterior muscle that acts on the shoulder girdle? (trapezius, levator scapulae, rhomboideus) | Pectoralis minor |
| The covering of individual muscle fibers is the: | endomysium |
| Another name for a sphincter muscle is a _____ muscle. | circular |
| A muscle that assists with mastication is the: | masseter (mastication means "to chew" food) |
| The soleus muscle is an example of a _____ muscle. | pennate |
| Groups of skeletal muscle fibers are bound together by a connective tissue envelope called the: | perimysium |
| The somatic nervous system carries information to the | skeletal muscles |
| The _____ nervous system is a complex network of nerve pathways embedded in the intestinal wall with a network of integrators and feedback loops that can act somewhat independently. | enteric |
| This tends to be the longest cytoplasmic projection from a neuron. | axon |
| Bundles of myelinated fibers make up the | white matter of the nervous system. |
| The _____ of a neuron is a single process that usually extends from a tapered portion of the cell body. | axon |
| These regions of the neuron direct electrical currents toward the cell body. | dendrite (telodendrites are at the end of the axon) |
| The structural and functional center of the entire nervous system is the _____ nervous system. | central (CNS) |
| What term describes the bundles of nerve fibers within the central nervous system? | tracts |
| Excitable cells that conduct the impulses are called | neurons |
| What structure of the Schwann cell is essential to normal nerve growth and the regeneration of injured nerve fibers? | neurilemma |
| What capacity do neurons have to heal themselves? | very limited capacity to repair themselves |
| The ________ of a presynaptic neuron associates with the dendrite of a postsynaptic neuron. | axon terminal |
| The efferent pathways of the autonomic nervous system can be divided into the __________ divisions. | parasympathetic and sympathetic (Efferent = "ew" away & Afferent = "aja" come) |
| Which of the following is not a structural classification of neurons? (bipolar, unipolar, multipolar, polar) | polar |
| Chemical signals diffuse between neurons at this location. | synapse (where two neurons come together and exchange information) |
| A signal conduction route to and from the central nervous system is a(n) | reflex arc |
| Which of these glia cells are located in the peripheral nervous system? (astrocytes, ependymal cells, oligodendrocytes, Schwann cells, microglia) | Schwann cells |
| The glia cells that help form the blood-brain barrier are the | astrocytes |
| This is the site of communication between neurons. | synapse |
| Nerves that originate from the brain are called _____ nerves. | cranial |
| Along a neuron, the correct pathway for impulse conduction is: | dendrite, cell body, and axon |
| The efferent pathways of the autonomic nervous system consist of the ________ nervous systems. | sympathetic and parasympathetic |
| Astrocytes attach to: | neurons and blood vessels |
| The nervous system can be divided: | according to its structure, according to the direction of information flow, and by the control of effectors |
| The autonomic nervous system does not stimulate: | skeletal muscles |
| Fascicles are held together by a connective tissue layer called the: | perineurium |
| In the human nervous system, what is the ratio of glia cells compared to neurons? | there are almost equal numbers of glia cells and neurons |
| Interneurons reside in the: | CNS only |
| Most unipolar neurons are usually: | sensory neurons |
| The afferent pathways of the autonomic nervous system: | carry feedback information to integrating centers in the brain |
| The white matter of the nervous system is made up of: | myelinated fibers |
| One of the components of the blood-brain barrier is: | astrocytes |
| Which of the following compounds cannot cross the blood-brain barrier? (water, carbon dioxide, glucose, or dopamine) | dopamine |
| Gray matter in the brain and spinal cord consists primarily of: | cell bodies |
| Regeneration of nerve fibers will take place only if the cell body is intact and the fibers have: | a neurilemma |
| What is true about the myelin sheath? | It is associated with white fibers in the brain, It is important for nerve impulse conduction, It is destroyed in those with multiple sclerosis |
| Nerves that contain mostly afferent fibers are called _____ nerves. | sensory |
| Dendrites conduct impulses _____ cell bodies. | toward |
| Schwann cells have a function in the PNS that is similar to that of which cells in the CNS? | Oligodendrocytes (only found in the CNS and are not found in the PNS) |
| Small distinct regions of gray matter in the CNS are called: | nuclei |
| The part of the nervous system that transmits impulses from the CNS to the skeletal muscle is the: | somatic nervous system |
| What are the functions of the central nervous system (CNS)? | Integrating sensory information, Evaluating the information, Initiating an outgoing response |
| Multipolar neurons have: | multiple dendrites and one axon |
| Which of the following is the deepest connective tissue layer of a nerve? (endoneurium, perineurium, epineurium, fascicle) | Endoneurium |
| What is the nervous system organized to do? | Detect changes in the external environment, Detect changes in the internal environment, Evaluate changes in the environment |
| Which is true of a reflex arc? | It always consists of an afferent neuron and an efferent neuron. |
| A neuron that has only one axon but several dendrites is classified as a _____ neuron. | multipolar |
| Neurons in the CNS have less chance of regenerating for all of the following reasons: | there is no neurolemma in cells of the CNS and astrocytes fill in the path of regrowth |
| The largest and most numerous types of neuroglia are the: | astrocytes |