Cranial Nerves Flashcards
List the cranial nerves.
(I) Olfactory nerve (II) Optic nerve (III) Occulomotor nerve (IV) Trochlear nerve (V) Trigeminal nerve (IV) Abducens nerve (VII) Facial Nerve (VIII) Vestibulocochlear nerve (IX) Glossopharyngeal nerve (X) Vagus nerve (XI) Accessory nerve (XII) Hypoglossal
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What nerve controls smell?
(I) Olfactory nerve
What nerve controls vision?
(II) Optic nerve
What nerve controls eye movement?
(III) Occulomotor
(IV) Trochlear
(VI) Abducens nerve
What does the (V) trigeminal nerve supply?
The 3 divisions of the trigeminal nerve:
- V1 = Ophthalmic
- V2 = Maxillary
- V3 = Mandibular
Provide sensation to the skin of the face and also control the muscles of mastication
What nerve controls facial expression?
(VII) Facial nerve
What nerve controls hearing and balance?
(VIII) Vestibulocochlear nerve
Splits into the vestibular and cochlear nerve.
What is the function of the vestibular nerve?
The vestibular nerve is responsible for innervating the vestibules and semicircular canal of the inner ear.
This structure transmits information about balance and is an important part of the vestibulocohlear reflex which keeps the head stable and allows the eyes to follow moving objects.
What is the function of the cochlear nerve?
Transmits information from the cochlea, allowing sound to be heard.
What nerves control oral sensation, taste and salvation?
(IX) Glossopharyngeal nerve
What nerve controls shoulder elevation and head turning?
(XI) Accessory nerve
What nerve controls tongue movement?
(XII) Hypoglossal nerve
What nerve exits the skull through the cribriform plate?
(I) Oflactory nerve
What nerve exits the skull through the optic foramen?
(II) Optic nerve
What nerves exit the skull through the superior orbital fissure?
(III) Oculomotor nerve
(IV) Trochlear nerve
(VI) Abducens nerve
(V1) Ophthalmic division of the trigeminal nerve
