Q.(a) Give any two functions of cerebellum.

Cranial nerve I is the Olfactory nerve (sensory — carries the sense of smell); cranial nerve IV is the Trochlear nerve (motor — supplies the superior oblique muscle of the eye); cranial nerve VII is the Facial nerve (...

Cranial nerves I (Olfactory, sensory), IV (Trochlear, motor) and VII (Facial, mixed) named with their types.

Of the twelve pairs of human cranial nerves: The I pair, the Olfactory nerve, is a purely sensory nerve that carries smell impulses from the olfactory epithelium of the nasal cavity to the olfactory bulb of the brain. The IV pair, the Trochlear nerve, is a purely motor nerve that innervates the superior oblique muscle of the eyeball, controlling certain eye movements; it is notable for being the smallest cranial nerve and the only one to emerge from the dorsal (back) surface of the brainstem. The VII pair, the Facial nerve, is a mixed nerve — its motor component innervates the muscles of facial expression, while its sensory component carries taste sensation from the anterior two-thirds of the to …