Prep for USMLEPrep for USMLE Forum
   Forum    Step 1  Step 2 CK Step 2 CS Step 3  Match  IMGs Resources Search






Previous Topic | Next Topic  Ca signal 




 
Kaplan Qbank USMLE



Author5 Posts
  #1

A research scientist is studying calcium fluxes in cultured cells
using confocal laser scanning microscopy. The magnitude of the signal
(brightness) is proportional to the strength of the calcium flux.
Stimulation of which of the following receptor types would be expected
to produce the strongest signal?
A. Alpha-1 adrenergic receptor
B. Beta-1 adrenergic receptor
C. Dopamine-1 receptor
D. Muscarinic acetylcholine receptor
E. Nicotinic acetylcholine receptor

___________________
fight possessed

  #2

B?


___________________
Time is God!

  #3

alpha 1 since it stimulates phospholipse C---PIP2--IP3 the Ca

___________________
Smell the coffee! "Is That an Osler move??"

  #4

A

___________________
The Key to Succeed is Patience.

  #5

From above mentioned only alpha1 and muscarinic acetylcholine receptors (M1 and M3-------> although in your question you didn't specify which one ) are able to increase Ca.

So the answer is A.







You don't have permission to post.




Login or Register to post messages in this topic





















Contact | Leaders | Disclaimer | Privacy

Copyright @ Prep for USMLE. All rights reserved.