Cranial Nerves Flashcards
Olfactory #
I
Olfactory type:
Special visceral afferent
Olfactory function:
Sense of smell
Optic #
II
Optic type:
Special somatic afferent
Optic function:
sense of vision
Oculomotor #
III
Oculomotor type:
- general somatic motor
2. general visceral motor
Oculomotor function:
- four of six extraocular muscles of the eye
2. intrinsic muscles of the eye
Trochlear #
IV
Trochlear type:
general somatic
Trochlear function:
superior oblique muscle of the eye
Trigeminal #
V
Trigeminal type:
- general somatic afferent
2. special visceral motor
Trigeminal function:
- input from the skin, mucous membranes, and muscles of the head, and from the meninges
- muscles for chewing and the tensor tympani of the middle ear
Abducens #
VI
Abducens type:
General somatic motor
Abducens function:
lateral rectus muscle of the eye
Facial #
VII
Facial type:
- Intermediate division
a. speical visceral afferent
b. general somatic afferent
c. general visceral motor - speical visceral motor
Facial function:
1a. sense of taste
1b. skin of the pinna of the ear
1c. glands of the face and throat
2. muscles of facial expression, stapedius muscle of the middle ear
Vestibulocochlear #
VIII
Vestibulocochlear type:
special somatic afferent
Vestibulocochlear function:
- cochlear branch: sense of hearing
2. vestibular branch: sense of head position
Glossopharyngeal #
IX
Glossopharyngeal type:
- general somatic afferetn
- genearl visceral afferent
- special visceral afferent
- general visceral motor
- special visceral motor
Glossopharyngeal function:
- skin of the pinna
- mucous membranes of the head
- sense of taste
- parotid gland
- striated muscles of the throat
Vagus #
X
Vagus type:
- general somatic afferent
- general visceral afferent
- special visceral afferent
- general visceral motor
- special visceral motor
Vagus function:
- meninges, and skin of the pinna
- some internal body structures
- sense of taste
- muscles of the gut, respiration, and heart
- striated muscles of the throat
Spinal accessory #
XI
Spinal accessory type:
special visceral motor
Spinal accessory function:
primarily sternocleiodmastoid and upper portions of trapezius
Hypoglossal #
XII
Hypoglossal type:
general somatic motor
Hypoglossal function:
muscles of swallowing