Cranial nerves

A and P 2

Nerve 1: olfactory nerve

Controls sense of smell

nerve 2: optic nerve

Vision (photoreceptors)

Nerve 3: oculomotor nerve

Controls muscles of eye and upper lid

Medial superior inferior rector and inferior oblique

Nerve four: trochlear nerve

Controls muscles of eye movement

Superior oblique

Nerve 5: trigeminal nerve

Touch pain and thermal sensation to face scalp and oral cavity

Controls muscles of mastication

Ophthalmic branch: sensory

Maxillary branch: sensory

Mandibular branch: mixed motor and sensory

Nerve 6: abducens nerve

Controls muscles of eye

Lateral rectus

Nerve 7: facial nerve

Controls muscles of facial expressions

Provide sensory sensation over external ear

Gustatory sensation to anterior 2/3 of tongue

Nerve 8: vestibucochlear nerve

Only one with two systems

Equilibrium

Hearing

Nerve 9: glossopharyngeal nerve

Assists swallowing

Gustatory sensation to posterior 1/3 of tongue

Monitors BP CO2 and O2 levels

Nerve 10: vagus nerve

Innervates thoracic and abdominal cavity

Provides sensory sensation to epiglottis

Swallowing coughing and voice production

Nerve 11: accessory nerve

Controls muscles of head and neck especially trapezius and pelvic girdle (clavicle and scapula)

Nerve 12: hypoglosseal nerve

Degluttition and manipulation of food