Kaplan videos

What effect will a Muscarinic agonist have on the pupils?
Why?
M agonist will cause miosis and accomodation.
- M receptors:
- Sphincter muscle -> miosis
- Accomodation -> contraction (relax = no M activation)
What causes mydriasis and cycloplegia?

Muscarinic antagonist.

Remember that accomodation is dependent only on muscarinic receptors.
A patient presents to the ER because of tachycardia, mydriatic pupils, but cannot sweat. What is going on?

This patient is on atropine a muscarinic antagonist.

Sweating although sympathetic is controlled by acetycholine which can be inhibited by muscarinic antagonist leaving the sympathetic system intact.

Author

lazzsant

158693

Card Set

Kaplan videos

Description

Kaplan video review

Updated

2012-06-14T02:59:02Z

Show Answers