chapter 14 - cranial nerves Flashcards
name the cranial nerves in order 1-12
olfactory
optic
ocular motor
trochlear
trigemina
abducens
facial
vestobulocohclear
glosspharyngeal
vagus
accessory
hypoglosseal
How many MIXED cranial nerves are there? (ie: sensory AND motor function)
name them
5,7,9,10 — 4 PAIRS
trigeminal
facial
glossopharyngeal
vagus
how many strictly SENSORY cranial nerves are there? name them
1,2,8 —- 3 pairs
olfactory
optic
vestibulocochlear
how many strictly MOTOR neurons are there? name them
5 pairs
3,4,6,11,12
ocular motor, trochlear, abducens, accessory, hypoglossal
which 3 nerves control eye movement?
are they motor, sensory, or mixed?
ocular motor
trochlear
abducens
motor
what is the origin and name of cranial nerve 1?
n1 = optic nerve
origin = receptors of olfactory epithelium
what is the origin and name of cranial nerve 2?
N 2 = optic nerve
origin = retina of eye
what is the name and origin of cranial nerve 3?
N3 = oculomotor nerve
origin = midbrain
what is the name and origin of cranial nerve 4?
N4 = trochlear nerve.
origin = midbrain
what is the name and origin of cranial nerve 5?
N5 = trigeminal
origin = opthalmic branch, maxillary branch, mandibular branch
what is the name and origin of cranial nerve 6?
N6 = abducens nerve
origin = pons
what is the name and origin of cranial nerve 7
N7 = facial nerve
origin = taste receptors on anterior 2/3 of tongue
what is the name and origin of cranial nerve 8?
N8 = vestibulocochlear nerve (aka auditory)
origin = receptors of internal ear (vestibule and cochlea)
what is the name and origin of cranial nerve 9?
N9= glossopharyngeal
origin: posterior 1/3 of tongue, pharynx
what is the name and origin of cranial nerve 10?
N10 - vagus nerve
origin: pharynx, diaohragm , visceral organs in thoracic and abdominoplevic cavities
