CV Path And Phys 4

Question 1

What quality of vessels do extrinsic factors control?

Answer 1

Vessel diameter

Question 2

Describe the response that occurs when epinephrine binds to B receptor.

Answer 2

Vasodilation

Question 3

describe hot effect that occurs when norepinephrine binds to alpha receptor.

Answer 3

Vasoconstriction

Question 4

What are the effects of M3 receptors in the parasympathetic (cholinergic) system?

Answer 4

Vasodilation
Vessels in GI tract, renal system
Minor effects elsewhere

Question 5

What are the response of the M3 receptors in the sympathetic (cholinergic) eyetem?

Answer 5

Vasodilation
Non-apical (hairy) skin

Question 6

Describe the effects of beta receptors (mainly beta-2) in the sympathetic (adrenergic) system.

Answer 6

Vasodilation
Skeletal muscle
Affinity: NE < EPI

Question 7

Describe the effects of alpha receptors (mainly alpha-1) in the sympathetic (adrenergic) system.

Answer 7

Vasoconstriction
Vessels in apical skin, some muscle in the GI tract
Affinity: NE>EPI