This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, larynx and trachea and cranial nerves 3,4,6, Subject name: Anatomy
A knife wound has severed the oculomotor nerve in a 45 year old man. Which of the following conditions will occur because of this injury? 
Select and explain. 
A. Constricted pupil, B. Abduction of the eyeball, C. Complete ptosis, D. Paralysis of the ciliary muscle
D: Paralysis of the ciliary muscle
Answer: D: Paralysis of the ciliary muscle 
Explanation: Paralysis of III NERVE Ptosis Mydriasis Ophthalmoplegia Diplopia Loss of accomdation reflex CHOICE EXPLANATION & ELIMINATION REASON 1 Constricted pupil - due to dilator pupil lesion sympathetic fibres lesion 2 Abduction - due to medial rectus injury 3 Lesion of III nerve will not cause complete Ptosis . elevation of eyelid also by tarsal muscles - supplied by sympathetic fibres 4 Ciliary muscles supplied by III Nerve