mash
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Bladder functions are regulated by which of the following combinations of inputs?
A. Vagal and sacral efferent fibers only
B. Vagal, sacral, and descending fibers from the cerebral cortex
C. Lumbar and sacral efferent fibers only
D. Lumbar, sacral, and descending fibers from the cerebral cortex
E. Lumbar, thoracic, and cervical fibers only
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| santaclara
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paeasympathetic is from sacral S2,S3 and S4.
and sympathetic is through preganglionic fibers,from T12 to L2.
may be it's B.
I DON'T KNOW.
AM I RIGHT MASH?
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| rubensssss
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Letter D
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Ruben sssss
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| mjl1717
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very good q
I go with d---because I Never heard of the vagus inervating the bladder and if somenone has please show me a reference.
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| mash
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yep, ans is D..
santaclara, u r right abt S2, 3 ,4 and lumbar flow but vagus does not supply the bladder
and desc fiber frm cerebral cortex supply it too.
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I hear and I forget. I see and I remember. I do and I understand.
--Confucius
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| santaclara
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thanx mash.
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| mjl1717
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key words in bladder inervation or control are:
1)medial side of locus ceruleus
2)pontine center inhibited by precentral gyrus
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