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4 Cards in this Set
- Front
- Back
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What actions does adrenergic receptor stimulation result in? What type of receptors falls under this category? |
sympathetic actions (flight or fight) norepinephrine & epinephrine activated, smooth muscle contraction, increased BP/CO/HR/AV conduction, increased pupil size, constriction of arterioles/skin/viscera/mucous membranes, vein constriction, male ejaculation & prostate contraction, bladder contraction
Alpha, Beta |
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What are the effects on the body when cholinergic receptors are activated? What type of specific receptor do they include and what actions does it have? |
Effects: ACh activated, decreased pupil diameter, decreased HR, bronchoconstriction & increased secretions, bladder contraction, increased GI activity -> salivation, gastric secretions, GI motility, defecation, increased sweating, erection, vasodilation Receptor: Muscarinic & Nicotinic Action: parasympathetic actions (rest and digest) |
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Similarity and difference between alpha 1 and alpha 2 receptors? |
Similarity: both adrenergic Alpha 1: smooth muscle contraction, vasoconstriction increased BP, pupil dilation Alpha 2: inhibits CNS transmitter NE release, vasodilation |
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Similarity and difference of Beta 1 and Beta 2 receptors? |
Similarity: adrenergic receptor Beta 1: CARDIO selective -> increased HR/force/AV/CO conduction, renin release Beta 2: RESP selective -> relaxes/dilation of smooth muscles -> bronchioles/lungs, eye, heart, bladder, uterus, GI, vasodilation of blood vessels, glycogenolysis -> glycogen breakdown into glucose, enhances skeletal muscle contraction |
