LEC 8 Peripheral Nervous System - Cranial Nerves

Vocabulary flashcards covering the cranial nerve numbers, names, branches, and specific sensory, motor, and parasympathetic functions from Lecture 8 on the Peripheral Nervous System.

Cranial Nerve I (Olfactory)

Sensory: Smell

Cranial Nerve II (Optic)

Sensory: Sight

Cranial Nerve III (Oculomotor)

Motor: to extraocular muscles except lateral rectus and superior oblique; Parasympathetic: sphincter of pupil and ciliary muscle of lens

Cranial Nerve IV (Trochlear)

Motor: to superior oblique eye muscle

Cranial Nerve V (Trigeminal)

Composed of three divisions: the Opthalmic Branch, Maxillary, and Mandibular Branch, which provide sensory functions to the face and motor innervation to the muscles of mastication

Opthalmic Branch (Trigeminal Nerve)

Sensory: upper part of skin of face

Maxillary (Trigeminal Nerve)

Sensory: middle part of skin of face

Mandibular Branch (Trigeminal Nerve)

Motor: muscles of mastication; Sensory: lower part of skin of face except in region near angle of mandible

Cranial Nerve VI (Abducens)

Motor: Lateral rectus eye muscle

Cranial Nerve VII (Facial)

Motor: muscles of facial expression; Sensory: taste, anterior 2/3 of tongue; Parasympathetic: lacrimal, mandibular, and sublingual glands

Cranial Nerve VIII (Vestibulocochlear)

Sensory: equilibrium; Sensory: Hearing

Cranial Nerve IX (Glossopharyngeal)

Motor: stylophayngeus muscles; Sensory: taste, posterior 1/3 of tongue; Parasympathetic: parotid gland

Cranial Nerve X (Vagus)

Sensory: skin of external auditory meatus, pharynx, larynx, and thoracic and abdominal viscera; Motor: pharynx and larynx; Parasympathetic: thoracic and abdominal viscera

Cranial Nerve XI (Accesory)

Motor: trapezius and sternocleidomastoid muscles of larynx and pharynx

Cranial Nerve XII (Hypoglossal)

Motor: muscles of tongue