Question

Which group cranial nerves control the eyeball movement?
a. Optic, Abducens, pathetic
b. Optic, Oculomotor, Trochlear
c. Oculomotor, Abducens, Auditory
d. Oculomotor, Abducens, Trochlear

Answer 1

Hint: The cranial nerves directly emerge from the brain. They rely upon the information between the head to neck which includes taste, smell, hearing and vision. The nerve controls the eye movement emerging from the brainstem and reach to the eye socket.

Complete answer:
These nerves connect the brain with the different parts of the body that are truck, neck and head. There are twelve pairs of cranial nerves. Each nerve function is categorised as being either sensory or motor.
These are the names and function of cranial nerves:

Name	Function
Olfactory nerve	Transmit the sensory information to the brain regarding smell.
Optic nerve	It a sensory nerve that provides information regarding vision
Oculomotor nerve	Two motor functions that are Pupil response- control the size of the pupilMuscle function- provides motor function to muscles around the eyes. These muscles help to focus and eye movement.
Trochlear nerve	Control the superior oblique muscle. This muscle is responsible for inward, outward, downward movement of the eyes.
Trigeminal nerve – largest cranial nerve Divided into three divisions – Ophthalmic, Maxillary and Mandibular	This nerve has both sensory and motor functions. Send sensory information from the upper part of the face, middle of the face and lower lip, chin and ear.Also, control the movement of jaw muscle and ear muscle.
Abducens nerve	Control the lateral rectus muscle – it is associated with eye movement. (involved in outward movement)
Facial nerve	Control face muscle during facial expression and jaw, provides a sense of taste, etc.
Vestibulocochlear nerve	The sensory function involved in hearing and balance
Glossopharyngeal nerve	Send sensory information from sinuses, back of the throat, back part of tongue and ear. Also, stimulate the voluntary movement of a back muscle of the throat.
Vagus nerve	Function as both, sensory and motor. For example – sending sensory information from the chest, motor control of throat muscles, etc
Accessory nerve	Motor nerve - control the muscles in the neck
Hypoglossal nerve	Involved in the movement of most of the muscles in the tongue.

From the above table, we can say that Oculomotor, Abducens, Trochlear cranial nerve responsible for eye movement.
Hence, the correct answer is option (B).

Note: Based on their location from front to back, each nerve has a corresponding Roman number. Sensory nerve information related to senses, like smell or taste whereas the motor nerve controls the function and movement of the muscles and glands.