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12 Cards in this Set
- Front
- Back
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What tissue contains beta-1 receptors? (2) |
Heart and Kidney (for renin release) |
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What tissue contains beta-2 receptors? |
Vascular smooth muscle |
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What does activation of beta-1 receptor on the heart lead to? (2) |
- Increased contractile force - Increased heart rate |
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On what cells in the kidney do beta-1 receptors act?
What enzyme is released? |
Juxtaglomerular cells
Renin |
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What effect does parasympathetic innervation have on the heart rate?
What receptor is acted upon? |
Slows it down
M2 muscarinic receptor |
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What effect does sympathetic innervation have on the heart rate?
What receptor is acted upon? |
Speed it up
Beta-1 receptors |
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What does innervation of beta-2 receptors in vascular smooth muscle do to a blood vessel? |
Dilate it |
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What does innervation of alpha receptors in vascular smooth muscle do to a blood vessel? |
Constrict it |
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What heart receptor is innervated as a reflex in response to drugs that lower blood pressure? |
beta-1 to increase BP |
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What smooth muscle receptor is innervated as a reflex in response to drugs that raise blood pressure? |
M2 for vasodilation |
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What effect does an increase in blood pressure have on heart rate? |
Decrease in heart rate (in response) |
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What effect does a decrease in blood pressure have on heart rate? |
Increases heart rate |
