BIO125 - CranialNerves Flashcards
II
2
Optic
I
1 Olfactory
III
3
Oculomotor
IV
4
Trochlear nerve
V
5
Trigeminal nerve
VI
6
Abducens
VII
7
Facial
VIII
8
Vestibulocochlear nerve
IX
9
Glossopharyngeal
X
10
Vagus nerve
XI
11
Accessory nerve
XII
12
Hypoglossal nerve
most nerves attach to ____ and are part of the CNS or PNS?
attach to brainstem and are apart of PNS
Nerves come in ____
pairs
nerves with sensory and motor function (5)
Trigeminal facial Glossopharyngeal vagus Vestibulocochlear (SOME MOTOR FUNCTION!)
just motor function (3)
Oculomotor abducens accessory hypoglossal Trochlear
just sensory function (2)
olfactory
optic
smell
- bulbs and tracts extend from cerebrum
- fascicles pas through cribiform plate
olfactory (I)
Vision
- nerve fibers pass through optic canal
- some fibers cross over in optic chiasm
- optic tracts lead from chiasm
Optic (II)
Eye movements (3) - passes through superior orbital fissure
Oculomotor (III)
Trochlear (IV)
Abducens (VI)
Sensory for facial and teeth: chewing
- largest cranial nerve has 3 branches
Trigeminal (V)
3 branches of Trigeminal nerve:
__ superior orbital fissure
__ foramen rotundum
__ foramen ovale
Ophthalmic
maxillary
mandibular
expressions, salvation, taste, tear secretion
- major __ nerve has 5 main branches (don’t have to know)
- goes through acoustic canal and stylomastoid foramen
facial (VII)
hearing and equilibrium
- mostly sensory
- through internal acoustic canal
Vestibulocochlear (VIII)
- taste; tongue, throat and outer ear sensory
- salvation, swallowing, gagging
- blood pressure, respiratory control
- goes through jugular forammen
Glossopharyngeal (IX)
- sensory and motor output for most internal organs
- cardio vascular, pulmonary, digestive, urinary functions
- through jugular foramen
vagus (X)
swallowing; neck and shoulder movements
- though jugular foramen
accessory (XI)
tongue movements
- through Hypoglossal canal
hypoglossal (XII)
