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20 Cards in this Set
- Front
- Back
All of the above
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Muscle cells are found in:
The walls of blood vessels The heart The stomach All of the above |
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Acting as a physical barrier to the movement of molecules
Forming the lining of various organs |
The functions of epithelial cells include:
Acting as a physical barrier to the movement of molecules Forming the lining of various organs Transmitting information Generating mechanical force |
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Pituitary gland
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Which of the following is an example of an endocrine gland?
Pituitary gland Sweat gland Gall bladder Salivary gland |
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All of the above are types of connective tissue
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Which of the following is NOT a connective tissue?
blood tendon lymph All of the above are types of connective tissue |
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connective
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Collagen is a protein found in which type of tissue?
connective epithelial muscle nerve |
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ICF
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Most of the body's water is contained in the:
ICF Interstitial fluid plasma ECF |
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Plasma + ISF
TBW - ICF |
Extracellular fluid is equal to:
ICF + ISF TBW - ICF Plasma + ISF TBW - plasma **more than one anwser |
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excretion
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Fluid is eliminated from the body by the process of :
filtration excretion secretion reabsorption |
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plasma
interstitial fluid |
Extracellular fluid includes:
plasma Interstitial fluid blood All of the above |
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Negative feedback
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A mechanism which "corrects" the deviation of a physiological variable from its set point is called:
Positive feedback Error signal Negative feedback None of the above |
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Error signal
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The drop in blood pressure which can occur when a person stands up too quickly is a(n):
Regulated variable Error signal Set point None of the above |
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Sensors
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The chemoreceptors in blood vessels that sense oxygen and carbon dioxide levels in the blood are:
Effectors Sensors Part of the integration center Error signals |
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Allow a variable to change rapidly in response to a stimulus
Require a stop signal to prevent a change in a physiological variable from going out of control Are sometimes a part of normal homeostasis |
Positive feedback mechanisms:
Are not physiological Are sometimes a part of normal homeostasis Allow a variable to change rapidly in response to a stimulus Require a stop signal to prevent a change in a physiological variable from going out of control |
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All of the above
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A positive feedback mechanism is prevented from spiraling out of control by:
Limiting the system's ability to respond to the stimulus A factor which stops the feedback loop Removal of the stimulus All of the above |
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radiation
convection conduction |
If you were standing in the snow on a cold and windy but sunny day, heat transfer between yourself and the environment could occur by:
evaporation radiation convection conduction |
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A response to pyrogens
A resetting of the body temperature set point |
A fever is:
A failure of the body's thermoregulatory system A resetting of the body temperature set point A response to pyrogens A positive feedback mechanism |
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skin
skeletal muscle |
During rest, blood flow to which of the following organs can be restricted without doing harm?
heart skin brain skeletal muscle **more than one answer** |
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Resting heart rate
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As a result of exercise training, which of the following decreases?
Bone density Oxygen carrying capacity of the blood Resting heart rate None of the above |
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All of the above
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In heat exhaustion, which of the following homeostatic mechanisms can be affected?
Maintenance of a stable blood pressure Maintenance of a stable blood volume Thermoregulation All of the above |
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The diameter of blood vessels in the skin
Sweat gland activity |
If the body temperature rises above the set point, which of the following will increase?
Muscle contractions The diameter of blood vessels in the skin Sweat gland activity All of the above **more than one answer** |