Q:

Stimulation of the vagus nerves causes

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Stimulation of the vagus nerves causes.


  1. A reduction in the strength of ventricular contraction.
  2. Secretion and vasodilatation in the salivary glands.
  3. Mucous secretion from bronchial mucosal cells.
  4. The spleen to contract.
  5. The gallbladder to contract.

All Answers

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A. False Ventricles have little vagal innervation.

B. False The vagus does not supply parasympathetic nerves to the salivary glands.

C. True It also contracts bronchial smooth muscle.

D. False It is sympathetic activity that causes the spleen to contract.

E. True This together with relaxation of the sphincter of Oddi drives bile into the duodenum.

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