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Kaplan Qbank USMLE



Author31 Posts
  #26

Sorry you are waiting.

Alpha receptor produce exitation.

mechanism of action: Formation of inositol 1,4,5-triphosphate(IP3) and (you are rigth) increase in intracellular (Ca)

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Ruben sssss

  #27

Alpha 2 receptors :
Are located in presynaptic nerve terminal , platelets,fat calls and the walls of GI tract.

They produce exitation or inhibition?

What mechanism of action has?

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Ruben sssss

  #28

As I remember a spinal tap is done at L3, L4 or L4,L5 interspace(so im sticking with my guns)
And actually I going a little more superior saying that the cord ends between L1 and L2.

For ADH ,Epi, and alpha 1-Gq stimulates phospholipase C :arrow: DAG.IP3 and Ca :arrow: Protein kinase C

Also PNS(cranialsacral)*
SNS(thoracolumbar)*

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  #29

alpha2--- inhibition
Gi prot--dec adenylate cyclase activity-- dec cAMP

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  #30

perfect mani.

___________________
Ruben sssss

  #31

Betha 1 receptors

The heart
Are located in the SA node,AV node, and the ventricular muscle of the heart.

It produce exitation or inhibition?

mechanism of action is?

___________________
Ruben sssss







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