Phys CIS

Question 1

What do alpha receptors typically do? beta?

Answer 1

1. Constriction

2. Dilation

Question 2

What receptors leads to pupil dilation?

Answer 2

alpha 1

Question 3

What receptors leads to relaxation of ciliary muscle? What does this allow?

Answer 3

1. Beta 2

2. Increased distance vision via flattening of the lens q

Question 4

What receptor is associated with an increase SA/AV Node activity? Increase ventricular myocytes?

Answer 4

Beta 1 (for both)

Question 5

What receptors helps to direct O2/blood to the right areas?

Answer 5

Beta 2–> relaxes the smooth muscle to allow for vasodilation

Question 6

Why do we not need more glucagon in a sympathetic response?

Answer 6

Because epinephrine and norepinephrine do glucagon’s job

Question 7

What receptors are involved in increased glycogenolysis in the liver/skeletal m?

Answer 7

alpha and beta receptors

Question 8

What leads to a decrease in insulin production?

Answer 8

alpha receptors

Question 9

What leads to an increase in lipolysis? Why does it happen?

Answer 9

1. beta receptors
2. Leads to an increase in FFAs for the other cells in the body to use (this helps to save the glucose for the skeletal muscle)

Question 10

What three changes are seen in the gut during a sympathetic response?

Answer 10

1. Decreased motility due to Beta 2
2. Decreased secretion due to alpha
3. Increased sphincters due to alpha 1