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10 Cards in this Set
- Front
- Back
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Define and characterize the differences between physiology and anatomy |
Anatomy is the study of the structure (sx) of the human body and its parts. Physiology is the study of the function (fx) of the human body and its parts. |
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Define homeostasis |
Homeostasis is the attempt by the body to maintain the body's internal environment relatively constant despite constantly changing external environmental conditions.
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Describe the two (2) mechanisms involved in regulating body functions |
Negative Feedback Mechanisms- Positive Feedback Mechanisms- |
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Draw a basic scheme for negative feedback |
Stimulus---> Receptor--->Afferent Pathway---> Integrating Center---> Efferent Pathway---> Effector--->Response---> Negative Feedback---> Receptor |
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Draw a basic schema for positive feedback. |
Starts like a negative feedback loop, but Stimulus is Removed |
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Characterize the differences between extrinsic and intrinsic mechanisms |
Intrinsic — mechanisms that are regulated within the organs. For example, the force of the contraction of the heart by the degree of cardiac muscle stretch. Extrinsic — mechanisms that are regulated by nervous and endocrine structures. For example, an increase in heart rate by the influence of the hormone epinephrine (adrenaline) on cardiac muscle tissue. |
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Describe the seven (7) basic structural levels of organization in the human body |
chemicals organelles cells tissues organs organ systems organism |
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Describe the difference between the set point and range of tolerance |
Set Point- Range of Tolerance- |
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Characterize the differences between a receptor and an effector |
Receptor Effector |
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Describe the differences between an afferent and efferent pathway |
Afferent Efferent |
