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Cranial Nerves
Review of the 12 Cranial Nerves
Question | Answer |
---|---|
Function of Nerve I | Olfactory- Transmit sensory impulses associated with smell |
Function of Nerve II | Optic- Transmit sensory impulses related to vision |
Function of Nerve III | Oculomotor- Motor impulses raise eyelids, adjust amount of light, moves eyes,focus lenses sensory-condition of muscles |
Function of Nerve IV | Trochlear- Motor impulses move the eyes Sensory impulses condition of muscles |
Function of Nerve V part A | Trigeminal Opthalmic- sensory impulses from Forehead, surface of eyes, tear glands, scalp, upper eyelids |
Nerve V part B | Trigeminal Maxillary- sensory impulses from upper teeth lip gum, palate, and facial skin |
Nerve V part C | Trigeminal Mandibular- sensory impulses from jaw skin, lower teeth gum lip Motor impulses to muscles in the floor of the mouth |
Function of Nerve VI | Abducens- Motor fibers move the eyes Sensory- condition of muscles |
Function of Nerve VII | Facial- Sensory impulses from the anterior tongue Motor impulses from tear and salvitory glands, facial expression |
Function of Nerve VIII | Vestibulocochlear-Sensory impulses from a)hearing b)equilibrium |
Function of Nerve IX | Glossopharyngeal- Sensory impulses from tonsils, posterior tongue, pharynx, carotoid arteries Motor- swallow and salivate |
Function of Nerve X | Vagus- Somatic speech and swallow Sensory- pharynx, larynx, esophagus, viscera of thorax and abdomen, Motor- heart smooth muscles and glands |
Function of Nerve XI | Accessory Cranial- Motor soft palate, pharynx, larynx Accessory Spinal- Motor neck and back |
Function of Nerve XII | Hypoglossal- Motor move tongue |