Chedy - theme 9

Question 1

Ganglia of the PNS:

Answer 1

Mostly from the top and bottom. Medulla oblongata and brain, plus some from lower tip of spinal cord.

Question 2

Actions of the PNS:

Answer 2

SLUDDSA

Salivation, lacrimation, urination, defecation, digestion, and sexual arousal

Question 3

Types of effects of ACh:

Answer 3

Nicotinic and muscarinic.

Question 4

Nicotinic ACh effect:

Answer 4

Postsynaptic of skeletal muscle and CNS. Stimulated by nicotine and ACh. Mediated by nAChRs. Ionotropic because permeable to Na, K, Cl. Two main types: muscle type (selectively blocked by curare) and neuronal type (selectively blocked by hexamethonium).

Question 5

Muscarinic ACh effect:

Answer 5

Mediated by mAChRs. Expressed mainly in postganglionic PNS terminals of exocrine glands and smooth/cardiac muscles.

Question 6

Cholinergic stimulation of mAChRs:

Answer 6

M1 - expressed in neural system

M3 - expressed in organs and tissues

Question 7

Cholinergic inhibition of mAChRs:

Answer 7

M2 - expressed in heart

M4, idk what that does

Question 8

ACh release in the ANS: *check against lecture 8

Answer 8

All pregang neurons (symp and parasymp), all postgang parasymp

Question 9

This lecture generally needs a lot of review and textbook reading probably

Answer 9

i hate this a lot