Nuclei located in the _______ are responsible for the contraction and dilation of the pupil of the eye.
A) metencephalon
B) telencephalon
C) mesencephalon
D) diencephalon

Question

Quizplus · Accepted Answer

The mesencephalon, also known as the midbrain, contains the Edinger-Westphal nucleus responsible for controlling the pupil's size through the parasympathetic nervous system.

Nuclei Located in the _______ Are Responsible for the Contraction