This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular motility and squint, Subject name: Ophthalmology
Final centre for horizontal movements of eye is- 
Select and explain. 
A. Abducent nucleus, B. Trochlear nucleus, C. Oculomotor nucleus, D. Vestibular nucleus
A: Abducent nucleus
Answer: A: Abducent nucleus 
Explanation: Horizontal movements of the eye are bought about by the action of Lateral rectus muscle. Lateral rectus muscle causes Abduction of the eye. It is supplied by the Sixth nerve (Abducent) Third cranial nerve (Occulomotor) supplies the superior, medial and inferior recti and inferior oblique muscle. Fouh cranial nerve(trochlear) supplies the superior oblique muscle. Mnemonic for nerve supply : SO - 4 LR - 6 (SO- superior oblique; 4 - 4th cranial nerve ; LR - Lateral rectus; 6 - 6 th cranial nerve) Ref;A.K.Khurana;6th Edition;Page no: 339