rm
Forum Senior
Topics: 16
Posts: 77
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can someone please explain the nerve innervations for the sweat glands? are thye sympathetic or parasympathetic? from what i remember, they are sympathetics but have muscarinic actions. is that right...i always get this confused!
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| tolito
Forum Fanatic
Topics: 119
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yes you are right. they are sympathetic but Ach is neurotransmitter post-synaptic.
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| rm
Forum Senior
Topics: 16
Posts: 77
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so stimulating the parasympathetic would cause sweating, and stimulating the sympathetics would cause...? i guess im trying to ask whether sweating is a sympath or parasymp response?
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| Slacker
Forum Elite
Topics: 29
Posts: 141
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sypathetic fibers inervate the sweat glands. So if u stimulate the sypathetic fibers, that will cause sweating. But if u give a muscurinic receptor agonist, that will also cause sweating because the sweat glands have a muscurinic receptor(similiarly to that all the organs inervated by parasympathetic fibers have mucurinic receptor). But i know where u r confused tho. Yes if u are trying to stimulate the parasympathetic end organs with muscurinic agonist, that will cause sweating bcause sweat glands have muscurinic receptors. U know what, look at the kaplan pharmbook. it has a very nice picture that should clear this out for u. hope this helps!!!!
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| mjl1717
Forum Hero
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the main thing is that this along with certain blood vessels is an exception to the rule!!!
usually if its sympathetic epi would be the postganglionic neurotransmitter,
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| drpkaur
Forum Guru
Topics: 196
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i also agree with slacker and tolito ...sympathetic fibers do innervate sweat glands causes sweating if stimulated but sweat glands also have muscarinic receptors M3 so therefore if there is muscarinic receptor agonists given they also cause sweating ....
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