Which of the following is not a mixed nerve?: (A) Vagus, (B) Glossopheryngeal, (C) Facial, (D) Trochlear
Answer is D. Trochlear nerve is the fouh cranial nerve, it supplies the superior oblique muscle of the eyeball. Functional components: - General somatic efferent, for lateral movement of the eyeball. - The general somatic afferent, for proprioceptive impulses from the muscle to the mesencephalic nucleus of V nerve. Ref: BD Chaurasia's HUMAN ANATOMY, Volume 3.