Physiology Lecture 4_ASN

Question 1

What 4 organ systems are only innervated by the sympathetic ANS

Answer 1

Adrenal gland
Arector Pili
Blood vessels
Renal system

Question 2

How many neurons are in ANS responses

Answer 2

Two, there is a pre ganglionic and post ganglionic neuron

Question 3

Which neuro transmiter is released by the preganglionic neurons (of both Sympathetic and Parasympathetic neurons)

Answer 3

ACh

Question 4

What is the post ganglionic neruo transmitter of the sympathetic NS

Answer 4

NE (except for sweat glands, they also use ACh)

Question 5

What is the post ganglionic neuro transmitter of the parasympathetic NS

Answer 5

Ach

Question 6

What pathway is triggered by alpha 1 adrenergic receptors

Answer 6

it is the IP3 pathway. This leads to an increase in cytoplasmic Ca++ concentrations

Question 7

What pathway is triggered by the beta receptors

Answer 7

it is the adenylyl cyclase pathway which creates cAMP

Question 8

What are the 6 target tissues of alpha 1 receptors

Answer 8

Vascular smooth muscle, skin, renal and splanich geastro intestinal tract, Bladder sphincter, Radial muscle sphincter, iris

Question 9

What are the 4 target tissues of beta 1 receptors

Answer 9

Heart, salivary gland, adipose tissue, kidney