Parasympathetic system causes

Inhibition of sweat glands

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Constriction of pupil in bright light

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Increase in rate of respiration

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Increase in heart beat

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Solution

The correct option is B Constriction of pupil in bright light
The pupillary light reflex is a reflex that controls the diameter of the pupil, in response to the intensity of light that falls on the retina of the pupil and the eye. Parasympathetic nerve fibres from the third (oculomotor) cranial nerve innervate the muscle that causes constriction of the pupil, whereas sympathetic nerve fibres control dilation.

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Similar questions

Q. Statement 1: Parasympathetic neural system increases the rate of heart beat.
Statement 2: Sympathetic neural system decreases the rate of heart beat.

Q. Sort the following into the category 'Sympathetic system' and 'Parasympathetic system' accordingly.

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2) Heart beat increases
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4) Production of hormones increases
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(b) The sympathetic system stimulates heart rate and stroke volume
(c) The parasympathetic system decrease the heart rate but increase stroke volume
(d) The sympathetic system decreases the heart rate but increases stroke volume

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