Which one is the function of parasympathetic nervous system in mammals

Acceleration of heart beat

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Constriction of pupil

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Stimulation of sweat glands

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Contraction of arrector pilli muscles

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D Constriction of pupil
The physiology behind a normal pupillary constriction is a balance between the sympathetic and parasympathetic nervous systems. Parasympathetic innervation leads to pupillary constriction. A circular muscle called the sphincter pupillae accomplishes this task.
So, option B is the correct option.

Suggest Corrections

	Feature	Sympathetic Nervous Sytem	Parasympathetic Nervous System
(a)	Salivary gland	Stimulates secretion	Inhibits secretion
(b)	Pupil of the eye	Dilate	Constricts
(c)	Heart rate	Decreases	Increases
(d)	Intestinal peristalsis	Stimulates	Inhibits