Question

Eye muscles are innervated by ________.

• A. Oculomotor, abducens and vagus
• B. Oculomotor, trochlear and abducens
• C. Oculomotor, abducens and facial
• D. Oculomotor, facial and vagus

Answer 1

Answer: (B)

Oculomotor, trochlear and abducens

The extraocular muscles are innervated by lower motor neurons that form three cranial nerves: the abducens, the trochlear, and the oculomotor. The abducens nerve (cranial nerve VI) exits the brainstem from the pons-medullary junction and innervates the lateral rectus muscle. These three cranial nerves control the position of eye ball, size of the pupil.

Hence, the correct answer is option B.