mjl1717
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Ach is transmitter in the ganglionic synapse. Norepinephrine is the transmitter at the neuroeffector synapse. The receptors in the ganglion are N-cholinoceptors. The receptors at the neuroeffector junction are alpha and beta adrenoreceptors. What "Exactly" are the exceptions in this nervous system??
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| phuluong2k
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In sweat gland, the sympathetic system uses acetylcholine as neurotransmitter, not NE.
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| mjl1717
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OK but Id say sympathetic M-cholinergic innervation of some sweat glands.
But there are 3 others!!
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| dr_venki
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piloerrectormuscles of the skin....?
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| mjl1717
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maybe if thats related to M cholinergic innervation of some blood vessels.
Now there are 2 more!
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| Moctopod
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In blood vessels to the skeletal muscle does the sympathetic system use Ach as well?
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| mjl1717
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Skeletal muscle vessel dilation is mostly B2 symp, but M2 cholinergic does play a minor role.
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| kmp
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Vascular smooth muscle in skeletal muscle has sympathetic cholinergic dilator fibers.
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| mjl1717
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Guys there are still 2 more exceptions!!
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| Kazem
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Adrenal medulla?
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| mjl1717
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Correct-N-cholinergic innervation of the adrenal medulla
But there is 1 more!
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