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Skills quizzes
| Question | Answer |
|---|---|
| The pelvis is larger and wider in females than in males. | anatomy |
| The cilia found in the respiratory system function to keep airway clear of dirt and mucus. | physiology |
| The heart can metabolize many molecules for energy including fatty acids, ketone bodies, lactate, and glucose. | physiology |
| Smooth muscle that lines the wall of the alimentary canal help knead or churn its contents through a process called segmentation. | physiology |
| Mitochondria are found in great quantity in muscle cells. | physiology |
| The long-term acid-base balance of the body is controlled by the kidneys. | physiology |
| Which organ system has pineal gland, hypothalamus, pancreas, adrenal glands, etc. | endocrine |
| Order the following body structures from the simplest (1) to the most complex (5)? | protein molecule, mitochondria, adipocyte, connect tissue, stomach |
| Why is the temperature control in your home an example of a negative feedback system? | The thermostat and the furnace (or air conditioner) work together to maintain a constant temperature by cycling on and off. |
| the functions of membrane proteins | glycoprotein detecting the body's own cells from foreign cells, gate that opens/closes to let solutes through at specific times, channel is always open allows solutes to pass into/out of cell, receptor that bind chemical messenger from other cells. |
| increase a cell's surface area | microvilli |
| act as sensory "antennae" in many cells | cilia |
| provide motility to a sperm cell | flagella |
| give cells that line the intestine and kidneys 15 to 40 times the absorptive surface area | microvilli |
| act like identification tags that enable the body to distinguish its own cells from foreign and diseased cells | glycocalyx |
| The sodium-potassium (Na+-K+) pump transports both sodium and potassium __________ their concentration gradients in a process called ____________. | up; active transport |
| You know that this cell is in a(n) _____ solution because it _____. (animal cell with cell losing water) | hypertonic solution; lost water |
| The cell in the image above is in a(n) ____________________ solution. | hypotonic |
| Which of the following organelles are involved in protein synthesis? (select all that apply) | the golgi complex, ribosomes, the nucleus, and rough er |
| Decreasing blood pressure causes widespread vasoconstriction, resulting in a rise in blood pressure. | negative feedback |
| Increasing levels of blood calcium causes calcitonin to be released, resulting in the decrease of blood calcium levels. | negative feedback |
| Platelets in the blood adhere to a recent cut in the skin and release chemicals, which cause additional platelets to adhere to the wound. | positive feedback |
| This feedback produces a rapid "climactic event." | positive feedback |
| This feedback is an increasing, amplifying, or magnifying process. | positive feedback |
| Provides a supportive network for the spleen | reticular connective tissue |
| Forms the basement membrane of epithelia | reticular connective tissue |
| Cartilage found in intervertebral discs. | fibrocartilage |
| Cartilage found in your nose. | hyaline cartilage |
| The hemi-version attaches the basal cells of an epithelium to the underlying basement membrane. | desmosomes |
| Protein channels that are situated between cells creating small pores for the passage of small substances are known as: | gap junctions |
| The type of cell junction that would most likely prevent water from flowing between our cells? | tight junctions |
| Cells in the epidermis of the skin need to be held tightly together so that an impermeable barrier to fluids is created. | tight junctions |
| Glands, such as the adrenals, that secrete their products directly into the blood rather than through ducts are classified as: | endocrine |
| functions of the integumentary system | sensation, water and UV resistant barrier, nonverbal communication, thermoregulation |
| Which layer of skin houses blood vessels that nourish the most superficial layer of skin? | Dermis |
| Emma was riding her bike and had a little crash. In the crash she skinned her knee, but the scrape did not draw any blood. She must have only damaged the: | epidermis |
| A coworker damaged their nail by shutting it in a car door. Here is a picture of their nail. The nail later fell off and did not regrow. What part of the nail was damaged? | Nail matrix |
| Produces the pigment that shields nuclei from UV light. | melanocytes |
| The most common cell type of the epidermis. | keratinocytes |
| Produced by undifferentiated stem cells of the stratum basale. | keratinocytes |
| Produces proteins and lipids associated with water-proofing the skin. | keratinocytes |
| Jill is blind and often uses braille to read her school assignments. Which cell helps her to discriminate between the texture of the dots? | tactile cells |
| Guard against toxins, microbes and other pathogens that penetrate into the skin. | dendritic cells |
| Melanin is produce upon exposure to: | UV radiation |
| Produces the pigment that shields nuclei from UV light. | melanocytes |
| It can be treated surgically if caught early, but if it metastasizes it is unresponsive to chemotherapy and is usually fatal. | melanoma |
| Two-thirds of cases of this cancer type in men are linked to a mutation in the oncogene BRAF. | melanoma |
| Most common type of skin cancer. | basal cell carcinoma |
| Arises from keratinocytes of the stratum spinosum. | squamous cell carcinoma |
| Characterized by lesions that are raised, reddened, and scaly in appearance that develop into concave ulcers with raised edges. | squamous cell carcinoma |
| Based on what you know about symptoms that distinguish burns, how would you classify this burn that is red, slightly swollen, and painful? | first-degree burn |
| Goblet cells, the most common unicellular gland in the body, secrete mucus in to the digestive and respiratory tracts. | true |
| The functions of the skeleton include: | hemopoiesis, support, protection, acid-base balance, electrolyte balance |
| Where is a bone does blood cell formation occurs? | red bone marrow |
| The center cavity of the diaphysis of a long bone is called the __________. | marrow cavity |
| You are looking at a histological slide of bone tissue and you recognize the following structures: canaliculi, lamella, lacunae, and central canals. You are most likely viewing a slide of: | compact bone |
| Made up of osteons | compact bone |
| Found in greater proportion in the bone diaphyses | compact bone |
| Also called cortical bone | compact bone |
| Composed of trabeculae | spongy bone |
| Designed to impart strength to a bone while adding a minimum of weight | spongy bone |
| Gaps between ossified material filled with marrow | spongy bone |
| From the following list select all bones that are formed by endochondral ossification: | ribs, femur, humerus |
| The release of parathyroid hormone is triggered by which of the following? | low blood calcium levels |
| Which of the following best describes the function of the hormone calcitonin? | Increase bone deposition |
| Women more commonly suffer from osteoporosis. Why? | men have higher bone densities, men produce sex hormones throughout their adult lives |
| The growth zone of the long bones of adolescents is the articular cartilage | false |
| The degree to which a muscle cell can stretch depends on its: | extensibility |
| When stimulated muscle cells respond with electrical changes across the plasma membrane. | excitability |
| Local electrical excitation sets off a wave of excitation that travels rapidly along the cell and initiates processes leading to contraction. | conductivity |
| Muscle cells are unique in their ability to shorten substantially when stimulated. | contractility |
| part of a muscle fiber? | sarcomere, sarcolemma, myofibril |
| Which of the following are found in the A band of the sarcomere? | thin filaments, thick filaments, m line |
| At the level of a sarcomere, the heads of the myofilament myosin directly use molecules of ___________ to adjust to their ___________ conformation, which allows them to form a cross-bridge with actin. | ATP; energized |
| Ted was building a rock wall and tried to pick up a large boulder. He discovered that the boulder was much heavier than he had expected it to be. Physiologically, what must occur to increase tension so that Ted can pick up the large boulder? | Recruitment of additional motor unit |
| During __________ contraction, the muscle develops tension without changing in length. | isometric |
| During __________ contraction, the muscle shortens, even though the level of tension is maintained | isotonic concentric |
| The act of placing a heavy casserole dish on the table for dinner involves ____________ contraction. | isotonic concentric |
| The act of picking your one-year old daughter up involves ____________ contraction. | isotonic eccentric |
| During exercise, different mechanisms of __________ production are used based on the duration of exercise. | ATP |
| For immediate energy, the __________ in muscle fiber can supply oxygen for limited cellular respiration. | myoglobin |
| For short term energy needs, glucose can be released from storages of __________ chains | glycogen |
| Long term exercise requires __________, which makes the maximum amount of ATP possible | aerobic respiration |
| Myofilaments shorten to produce muscle contractions according to the sliding filament mechanism. | False |
Created by:
corty.19