A&P I --CH-11 Crainal Nerves

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CH--11 Cranial Nerves

Cranial Nerves

12 pairs, each pair have a specific number always designated by a roman numeral and a name, the number indicated the order in which the nerves exit the brain from the front to back, all these nerves pertain to the head, face, neck, with 1 exception (the vagus nerve)

Olfactory I

smell, sensory

Optic II

Sight, sensory

Oculomotor III

movement of eyeball, raising eyelid, change in pupil size, mixed

Torchlear IV

movement of eyeball, mixed

Trigeminal V

Chewing of food, sensation in face, scalp, cornea, and teeth --mixed

Abducens VI

movement of eyeball, mixed

Facial VII

facial expressions, secretions of saliva and tears, taste, and blinking---mixed

Vestibulochochlear VIII

Sense of hearing, and balance-sensory

Glosspharyngeal IX

swallowing, secretion of saliva and tears, taste, sensory for the reflex, regulation of blood pressure, part of the gag reflux--mixed

Vagus X

veseral muscle movement and sensation, espically movement and secretion of the digestive system, sensory for reflux regulation of blood pressure --mixed

Accesory XI

swallowing, head and shoulder movement, speaking -mixed

Hypoglossal XII

Speech and swallowing -mixed

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