MRCP UK EXAMINATIONS

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

Detailed explanation-2: -Cranial nerve six (CN VI), also known as the abducens nerve, is one of the nerves responsible for the extraocular motor functions of the eye, along with the oculomotor nerve (CN III) and the trochlear nerve (CN IV).

Detailed explanation-3: -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-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. In an extraocular muscle function exam, your eye care specialist will observe the movement of the eyes in six different directions.

Detailed explanation-5: -The lateral rectus muscle is an abductor and moves the eye laterally, and side to side along with the medial rectus, which is an adductor.