ANS stuff

Question 1

What neurotransmitter is released from the presynaptic neuron in both sympathetic and parasympathetic nervous systems?

Answer 1

acetylcholine

Question 2

What neurotransmitter does the post-synaptic neuron release in the sympathetic NS?

Answer 2

norepinephrine

Question 3

What neurotransmitter does the post-synaptic neuron release in the parasympathetic NS?

Answer 3

acetylcholine

Question 4

What do alpha 1 receptors do?

Answer 4

dilate pupil
vasodilation
(metabotropic)

Question 5

What do beta 1 and beta 2 receptors do?

Answer 5

increase heart rate and strengthen heart contraction

Question 6

What does the beta 2 receptor do?

Answer 6

bronchodilation

Question 7

What do beta 1 receptors do?

Answer 7

dilate pupil

Question 8

What effect do beta blockers have on the gut and vascular muscle, respectively?

Answer 8

stimulates gut Sm M contraction

Inhibits vasculature Sm M contraction

Question 9

What effect does ACh have on smooth muscle?

Answer 9

excitatory or inhibitory

Question 10

What effect do NE and Epi have on smooth muscle?

Answer 10

Inhibits gut Sm M contraction

Excites vascular Sm M contraction