ANATOMY

GENERAL ANATOMY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Moves eyes laterally away from the nose
A
abducens
B
facial
C
trigeminal
D
accessory
Explanation: 

Detailed explanation-1: -Contraction of the lateral rectus pulls the eye away from the nose (abduction or lateral movement).

Detailed explanation-2: -The oculomotor nerve is the third cranial nerve (CN III). It enables eye movements, such as focusing on an object that’s in motion. Cranial nerve III also makes it possible to move your eyes up, down and side to side.

Detailed explanation-3: -The inferior rectus muscle can assist in moving the eye towards the nose and turning the eyeball away from the nose or towards the side of the face. If the medial rectus is damaged, the eye will be unable to look down from straight ahead. Like the superior rectus, this may cause the eyes to appear misaligned.

Detailed explanation-4: -When the eye is turned toward the nose, the inferior oblique muscle raises the eye, turning the top of it away from the nose and moving it upward.

Detailed explanation-5: -The abducens nerve functions to innervate the ipsilateral lateral rectus muscle and partially innervate the contralateral medial rectus muscle (at the level of the nucleus-via the medial longitudinal fasciculus).

There is 1 question to complete.