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Position: 房老師的解題園地 > Forums > Discussion
老師,請問有關ANS的一個問題
1
Sympathetic nerve system has different kind of receptor.
Alpha 2 is the dominant one that makes GI tract relax.
Beta 2 is another receptor that cause smooth muscle to relax, too.
The problem is that alpha decrease cAMP, but beta 2 increase cAMP.
cAMP has been proved to relax smooth muscle for it inhibiting MLCK.
I wonder why cAMP plays different in smooth muscle cell.
(i've do some research but can't find the answer.)