Receptor Function

Question 1

Miosis

Answer 1

Contraction of the pupil.

Question 2

Cycloplegia

Answer 2

Paralysis of the ciliary muscle of the eye. Results in loss of accommodation.

Question 3

B1 Receptor Function

Answer 3

SNS

-inc. HR

Question 4

A1 Receptor Function

Answer 4

SNS

• constrict vessels- inc. TPR
• close bladder sphincter
• mydriasis (dilation)

Question 5

B2 Receptor Function

Answer 5

SNS

• vessel relaxation- inc. perfusion
• dec. GI muscle tone
• relax detruser- dec. urination
• relax uterus

Question 6

A2 Receptor Function

Answer 6

SNS

-dec. GI motility

Question 7

M Receptor Function

Answer 7

PNS

• bronchoconstriction
• inc. GI motility
• constrict detruser, relax urinary sphincter- inc. urination
• miosis, near vision

Question 8

M2 Receptor Function

Answer 8

PNS

-dec. HR

Question 9

Mydriasis

Answer 9

Dilation of the pupil.