Question

CN Name Distribution Type Function Nasal mucosa II Eye IIT Four extrinsic eye muscles, ciliary muscle, iris, and levator palpebrae superioris muscle Extrinsic eye muscle supe rior oblique IV V Three branches: Ophthalmic, maxillary, and mandibular Extrinsic eye muscle lateral rectus VI VII VIII IX х Anterior 2/3 of tongue; facial, neck, and scalp muscles; salivary glands: lacrimal glands Cochlea and semicircular canals of the inner car Posterior 1/3 of the tongue, pharynx muscles, parotid gland Muscles of the pharynx and epiglottis; smooth muscles of the thoracic wall and GI tract: glands of the GI tract; the heart wall Two parts: a cranial por- tion (muscles of the pharynx, larynx, and soft palate); a spinal portion to sternocleidomastoid and trapezius muscles Muscles of the tongue XI XII Exercise 14. The Nervous System: Brain and Cranial Nerves

Answer 1

Answer:

The names and functions of cranial nerves are as given under:

CN #	Name	Distribution	Type	Function
I	Olfactory Nerve	Given in question	Sensory	Sensory for smell (olfaction)
II	Optic Nerve	Given in question	Sensory	Sensory for vision
III	Oculomotor Nerve	Given in question	Motor	Movement of the eye and the constriction of pupil
IV	Trochlear Nerve	Given in question	Motor	Movement of eye
V	Trigeminal Nerve	Given in question	Mixed	Sensory for touch pain temperature from the face and head Motor for muscles of mastication.
VI	Abducens Nerve	Given in question	Motor	Movement of the eye
VII	Facial Nerve	Given in question	Mixed	Sensory for anterior 2/3rd of the tongue (taste) Motor for muscles used for facial expression
VIII	Vestibulocochlear Nerve	Given in question	Sensory	Sensory for hearing as well as balance
IX	Glossopharyngeal Nerve	Given in question	Mixed	Sensory for posterior 1/3rd of tongue (taste) Motor for muscles used in swallowing
X	Vagus Nerve	Given in question	Mixed	Sensory and motor for visceral organs of the body
XI	Spinal Accessory Nerve	Given in question	Motor	Motor for the movement of the muscles of the head.
XII	Hypoglossal Nerve	Given in question	Motor	Motor for the movement of the tongue