Autonomic receptors and second messangers Flashcards Preview

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Flashcards in Autonomic receptors and second messangers Deck (13):
1

What receptors do uterine relaxation?

sympathetic beta 2 receptors

2

What receptors cause pupil dilation

sympathetic alpha 1 receptors

3

What receptors control bladder contraction? What receptors control bladder sphincters?

M3 muscarinic parasympathetic receptors promote bladder contraction. alpha 1 sympathetic receptors promote bladder sphincter muscle contraction.

4

What receptors promote pupil constriction?

parasympathetic muscarinic M3 receptors

5

What receptors increase aqueous humor production?

Beta 2 receptors

6

What receptors promote bronchodilation? bronchoconstriction?

dilation is Beta 2; constriction in M3

7

what do alpha-1 receptors do?

incr. vascular smooth muscle contraction, promote pupillary dilation, increase intestinal and bladder sphincter tone

8

What do alpha-2 receptors do?

decr. sympathetic outflow, decr. insulin release, decr. lipolysis, incr. platelet aggregation

9

What do beta-1 receptors do?

increase heart rate and contractility. also incr. renin release and incr. lipolysis

10

What do beta-2 receptors do?

bronchodilation, vasodilation, incr. HR, incr. contractility, incr. lipolysis, incr. insulin release, decr. uterine tone, incr. aqueous humor production, and cause ciliary muscle relaxation.

11

What do M1 receptors do?

have effects on the CNS and enterics

12

What do M2 receptors do?

decr. HR and contractility of atria

13

What do M3 receptors do?

incr. exocrine gland synthesis, incr. gut peristalsis, incr. bladder contraction, bronchoconstriction, incr. pupillary sphincter muscle tone (pupillary contraction), and do accommodation.