Q:

Sympathetic

0

 Sympathetic.


  1. Ganglionic transmission is mediated by acetylcholine.
  2. Neuromuscular transmission at the heart is mediated by adrenaline.
  3. Neuromuscular transmission in hand skin arterioles is mediated by acetylcholine.
  4. Neuroglandular transmission at sweat glands is mediated by noradrenaline.
  5. Neuromuscular transmission at the iris is mediated by noradrenaline.

All Answers

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A. True This applies to parasympathetic ganglia also.

B. False The transmitter is noradrenaline.

C. False The transmitter is noradrenaline here also.

D. False These sympathetic fibres are cholinergic.

E. True Sympathetic adrenergic fibres innervate radial muscle in the iris; cholinergic parasympathetic fibres innervate the circular muscle.

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