THORAX ABDOMEN AND PELVIS

MEDICAL

NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these nerves DOES NOT innervate the eye?
A
Optic (II)
B
Oculomotor (III)
C
Trochlear (IV)
D
All of these innervate the eye.
Explanation: 

Detailed explanation-1: -Which of the following cranial nerves does not innervate extrinsic eye muscles? (e) Trigeminal.

Detailed explanation-2: -Cranial nerves III (CNIII) (oculomotor), IV (trochlear), and VI (abducens) control the position of the eyeballs; CNIII influences the position of the eyelids and the size of the pupils.

Detailed explanation-3: -Cranial Nerve: Oculomotor Nerve (Cranial Nerve III) The third nerve innervates all extraocular muscles, except for the lateral recti and superior obliques. It also innervates the levator palpebrae and carries parasympathetic efferent fibers to the pupillary sphincter and ciliary muscle through the ciliary ganglion.

There is 1 question to complete.