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12 Cards in this Set
- Front
- Back
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________ regulation occurs when the activities of organs are regulated locally. |
Intrinsic |
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The integrating center for the negative feedback loop that regulates body temperature is the |
hypothalamus |
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Homeostatic regulation usually involves a(n) ________ that detects a particular stimulus, and a(n) ________ that responds to the stimulus by communicating with a(n) ________ whose activity has an effect on the same stimulus. |
receptor; integrating center; effector. |
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Hypoventilation leads to |
respiratory acidosis. |
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Which hormone stimulates the thirst mechanism? |
ADH - Anti Diuretic Hormone |
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The amount of potassium excreted by the kidneys is regulated mainly by |
aldosterone |
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In response to respiratory alkalosis, the kidneys retain more _______ |
hydrogen ions |
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During exercise, blood flow to skeletal muscles increases. The initial response that increases blood flow is automatic and independent of the nervous and endocrine systems. Which type of homeostatic regulation is this? Why? |
Autoregulation. Auto regulation does not require input from nervous system or endocrine system. Other examples include: heart rate / blood pressure which are controlled by the cardioacceleratory centres in the heart. |
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Calcium reabsorption by the kidneys is promoted by the hormone: • cortisol • calcitonin • ADH • parathyroid hormone • aldosterone. |
• parathyroid hormone - |
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________ regulation results from the activities of the nervous or endocrine system. |
Extrinsic |
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Which hormone plays a central role in determining the rate of sodium reabsorption and potassium secretion? |
aldosterone |
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A person with emphysema will exhibit signs of |
chronic respiratory acidosis |
