PNS/Cholinergics

Question 1

Cotransmitters of PNS (3)

Answer 1

Purines (adenosine, ATP)
Peptides (CCK, substance P, NPY, VIP)
Nitric oxide

Question 2

Chromaffin cells respond by releasing what percentages of epi & norepi?

Answer 2

80% epi
20% norepi
Teeny tiny amounts of dopamine

Question 3

Thermoregulatory sweat glands….parasympathetic or sympathetic?

…what receptor class & subtype?

Answer 3

Sympathetic

BUT Muscarinic 3 receptors (M3)

TRICKY TRICKY