Cranial Nerves Flashcards Preview

Neuroscience Exam 1 > Cranial Nerves > Flashcards

Flashcards in Cranial Nerves Deck (12)
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1
Q

Olfactory Nerve

A

Cranial nerve I

sensory

sense of smell

olfactory bulb and tract in forebrain

Skull exit: cribriform plate

2
Q

Optic Nerve

A

Cranial nerve II

sensory

vision

optic chiasm and tract in forebrain

Skull exit: optic canal

3
Q

Oculomotor nerve

A

Cranial nerve III

motor

eye movements, papillary constriction, muscles of eyelids

Brainstem exit: interpeduncular fossa

Skull exit: superior orbital fissure

4
Q

Trochlear nerve

A

Cranial nerve IV

motor

eye movements

brainstem exits: caudal inferior colliculus

skull exit: superior orbital fissure

5
Q

Trigeminal Nerve

A

cranial nerve V

sensory and motor

somatic sensation from face, mouth, cornea
muscles of mastication

brainstem exit: middle cerebellar peduncle

skull exit: V1 (opthalamic)-superior orbital fissure
V2 (maxillary)- foreman rotundum
V3 (mandibular)- foreman ovale

6
Q

Abducens Nerve

A

Cranial nerve VI

motor

eye movements

Brainstem Exit: pontomedullary junction

Skull exit: superior orbital fissure

7
Q

Facial Nerve

A

Cranial nerve VII

motor and sensory

controls muscles of facial expression, taste from anterior tongue, lacrimal and salivary glands

brainstem exit: pontomedullary junction

skull exit: internal auditory meatus/ stylomastoid process

8
Q

Vestibulocochlear

A

Cranial nerve VIII

sensory

hearing, sense of balance

Brainstem exit: pontomedullary junction

skull exit: internal auditory meatus

9
Q

Glossopharyngeal

A

Cranial nerve IX

sensory and motor

sensation from pharynx, taste from posterior tongue, carotid barorecpetors and chemoreceptors

Brainstem exit: post olivary sulcus

Skull exit: jugular foramen

10
Q

Vagus Nerve

A

Cranial nerve X

sensory and motor

autonomic functions of gut, sensation from pharynx muscles of vocal cords, swallowing

Brainstem exit: post olivary sulcus

Skull exit: jugular foramen

11
Q

Spinal Accessory Nerve

A

Cranial nerve XI

motor

muscles of neck and shoulder

Brainstem exit: post olivary sulcus

Skull exit: jugular foramen (enters via foramen magnum)

12
Q

Hypoglossal Nerve

A

Cranial nerve XII

motor

movements of tongue

Brainstem Exit: preolivary sulcus

Skull exit: hypoglossal canal