Physiology - ANS Quiz

Atropine is given before surgical operations to:
decrease heart rate.
Prevent bronchial secretion.
Relax skeletal muscle.
Induce bronchconstriction.
All of the following about the sympathetic N.S. is true EXCEPT
All its preganglionic fibres are cholinergic .
It is involved in stress and emergency conditions.
It has a Vasodilation. effect on skeletal muscle blood vessels during rest.
Its stimulation increases the cardiac properties
The sympathetic supply cannot be responsible for:
Constriction of the pupil.
Erection of hair.
Secretion of sweat gland.
Dilatation of skeletal muscle blood vessels.
A drug which blocks beta adrenoceptors is likely to cause:
Dilatation of bronchi.
Decrease heart rate.
Ciliary muscle relaxation for far vision.
Reduces blood sugar level due to stimulation of insulin secretion
Administration of beta blockers produce all the following EXCPT:
May cause bronchoconstriction.
Produces bradycardia & lowers the arterial blood pressure.
Decrease heart rate.
Leads to bronchodilatation.
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