Autonomic receptors and second messangers

Question 1

What receptors do uterine relaxation?

Answer 1

sympathetic beta 2 receptors

Question 2

What receptors cause pupil dilation

Answer 2

sympathetic alpha 1 receptors

Question 3

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

Answer 3

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

Question 4

What receptors promote pupil constriction?

Answer 4

parasympathetic muscarinic M3 receptors

Question 5

What receptors increase aqueous humor production?

Answer 5

Beta 2 receptors

Question 6

What receptors promote bronchodilation? bronchoconstriction?

Answer 6

dilation is Beta 2; constriction in M3

Question 7

what do alpha-1 receptors do?

Answer 7

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

Question 8

What do alpha-2 receptors do?

Answer 8

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

Question 9

What do beta-1 receptors do?

Answer 9

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

Question 10

What do beta-2 receptors do?

Answer 10

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

Question 11

What do M1 receptors do?

Answer 11

have effects on the CNS and enterics

Question 12

What do M2 receptors do?

Answer 12

decr. HR and contractility of atria

Question 13

What do M3 receptors do?

Answer 13

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