Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ch. 6 Pretest
| Question | Answer |
|---|---|
| Skeletal muscles usually act in groups rather than individually. | True |
| Raises your eyebrows for a questioning expression: | frontalix |
| Its contraction makes the "sad clown" face: | platysma |
| Your "kisser": | orbicularis oris |
| Important muscle to a saxophone player: | buccinator |
| Used to smile: | zygomaticus |
| Used in blinking and squinting: | orbicularis oculi |
| Allows you to chew your food: | masseter |
| The correct order of arrangement of skeletal muscle cells, from largest to smallest it: | muscle, fascicle, muscle fiber (cells), myofibrils, myofilament |
| Pushing against a wall is an example of which type of contraction? | isometric |
| The endomysium is a delicate connective tissue sheath that surrounds a/an" | skeletal fiber muscle |
| The cytoplasm of the muscle cell is called: | sarcoplasmic reticulum |
| Which of the following refers to one neuron and all the skeletal muscle cells? | Motor unit |
| Muscles that are concerned with bracing actions or stability of the origin are called: | fixators |
| The essential function of any muscle is to ______. | contract |
| An important medical injection site in the HIP is the: | gluteus medius |
| The muscle whose action is dorsiflextion and inversion of the foot is the: | tibialis anterior |
| Which of the following statements concerning isometric contractions is true? | muscle length remains constant |
| Which statement is true of smooth muscles? | it lines the walls of many hollow organs |
| What is a quick, jerky response of a given muscle to a single stimulus calles? | twitch |
| A joint stabilizer that holds a bone still at the point of origin is calld the synergist. | False |
| What is the most external to muscles, bones, and other organs that is flat and broad connective tissue that merges with the wrapping of another muscle like in your abdominal region? | aponeurosis |
| Consider the two types of muscle contractions described in this chapter; in ____ contractions, the muscle may shorten and movement may occur. | isotonic |
| The smallest contractile unit of a muscle is a: | sarcomere |
| Muscles that are arranged like the feathers on an arrow are described as: | pennate |
| Considering the relaitonship between the biceps and the triceps, the biceps is the ______ whereas the triceps is the _____ as the elbow is FLEXED. | prime mover, antagonist |
| The muscle that is the antagonist for the flexion of the forearm is the: | triceps brachii |
| Skeletal muscles have a lot of effect on body temperature. | True |
| The cardiac muscle is also known as striated, involuntary, and intercalated. | True |
| An entire skeletal muscle is covered by a coarse sheath called: | epimysium |
| What muscle word means short? | brevis |
| The skeletal muscle fiber characteristic of excitability directly results in these cells being capable of: | responding to nerve signals |
| Endurance training is also known as: | aerobic training |
| Referring to the muscle attachment to bones, the ____ is the immovable attachment site. | origin |
| Small muscles between the ribs | intercostals |
| extends the toes | extensor digitorum longus |
| injection site of leg | vastus lateralis and gluteus medius |
| extends wrist | extensor carpi ulnaris |
| 6 pack - really the 8 pack | rectus adominis |
| allows you to grip a horse's back with your thighs | adductor group |
| injection site of arm | deltoid |
| elbow extender | triceps brachii |
| The anatomical term for a muscle cell, in skeletal and smooth muscle tissues, is ____: | muscle fiber |
| The group of muscles on the posterior side of the thigh are: | hamstrings |
| Most extensor muscles are located on the ____ aspect of the body. | posterior |
| holding you hands downward | pronation |
| holding you hands upward | supination |
| The bulk of the tissue of a muscle tends to lie ____ to the part of the body it causes to move. | proximal |
| The ___ is the exeption that flexes backward on the posterior side. | knee |
| The group of muscles on the anterior side of the thighs are: | quadriceps |
| Most flexor muscles are on the ___ aspect of the body. | anterior |
| Tipping the head back, as in lookin up at the sky, is an example of flexion. | False |
| What is the BEST definition of the insertion of a muscle? | the attachment to a movable bone |
| Which of the following is NOT a function of a skeletal muscle? | participates in the transport of oxygen in the blood to the tissues |
| Which of the following refers to one neuron and all the skeletal muscle cells it stimulates. | motor unit |
| Which of these muscles is located in the abdominal region? | external oblique |
| A fascicle is wrapped by a layer of connective tissue called ____. | perimysium |
| A tissue with striations and many flattened nuclei under the plasma membrane in each cell would be called ______. | skeletal muscles |
| The reason that you keep huffing and puffing after you stop running is due to: | oxygen debt |
| What muscle word mean huge or large? | maximus or vastus |
| The bending or movement of a limb toward the midline of the body is known as ______ | adduction |
| Which of the following can best be used to distinguish cardiac muscle from smooth muscle | cardiac muscle is striated |
| Antagonists are muscles that: | oppose prime movers |
| The three types of muscle tissue are smooth, cardiac, and ______ | skeletal |
| What muscle word means long? | longus |
| What are muscles called which the fivers run in a rounded: | circular |
| Synergist muscles contract at the same time as prime movers to facilitate or aid prime movers for more efficient movement. | True |
| Although ATP provides the energy for muscle contraction, _______ must also be present for muscle fibers to slide properly during contraction. | calcium |
| Myosin heads are also called: | cross-bridges |
| A deltoid muscle is the shape of a ______ | triangle |
| Which of the following statement is NOT true regarding energy generation for muscle contraction? | Anaerobic glycolysis is not an energy source for muscle contraction. |
| The plasma membrane of a muscle cell is most usually termed a ____: | sarcolemma |
| Muscles that are wide and come together at a point are called: | convergent |
| Exercise throughout life helps muscles to retain both strength and ___: | mass |
| A muscle which fibers look like a full plume on an arrow are called: | bipennate |
| Which of the following is NOT a function of skeletal muscles? | unresponsiveness |
| What 2 words describe the skeletal muscle? | voluntary, striated |
| The muscle that is mainly responsible for a particular movement is known as the ______. | prime mover |
| Where the neuron meets the muscle cell is the _____. | neuromuscular junction |
| Transverse fiver _____. | run across other fibers |
| The origin of a muscle is the point of attachment that moves when the muscle contracts. | False |
| Which of the following statements is NOT true? | Tetanic contraction of muscles refers to a disease that causes total, sustained contraction of muscles. |
| In a skeletal muscle fiber, the sarcomere is a repetitive unit that consists of the entire region between the ____. | Z lines |
| Prolonged inactivity causes muscle to shrink in mass, a condition called: | atrophy |
| A muscle contracts the instant it is stimulated. | False |
| What muscle word means small? | minimus |
| Muscles that unite together are called: | fusiform |
| What is the specific neurotransmitter that is released by motor neurons and stimulates skeletal muscles? | Acetylcholine (Ach) |
| Muscles ______. | pull |
| Muscles that are arranged with fibers running side by side are called: | parallel |
| The neurotransmitter ___ is vital to proper muscle functioning. | acetylcholine |
| The nuclei of skeletal muscle cells are pushed aside by long, ribbonlike organelles called _____, which nearly fill the cytoplasm. | myofibrils |
| Which of the following proteins are the thick myofilaments made of? | myosin |
Created by:
amh159