Cranial Nerve Pairs Flashcards
1
Q
- Olfactory Nerves
A
- purely sensory
- carry afferant impulses for sense of smell
2
Q
- Optic Nerves
A
- purely sensory
- carry afferant impulses for vision
3
Q
- Oculomotor Nerves
A
- mixed, chiefly motor
- somatic motor fibers to 4/6 extrinsic eye muscles (raise eyelids)
- parasympathetic motor fibers to sphincter pupillae (visual focusing)
- sensory afferants, run from the skeletal muscles served to the midbrain
4
Q
- Trochlear Nerves
A
- chiefly motor
- somatic motor fibers supply the superior oblique muscle (1/6 of extrinsic eye muscles)
5
Q
- Trigeminal Nerves
A
- largest
- main general sensory nerves of face
6
Q
- Abducens Nerves
A
- chiefly motor
- somatic motor fibers supply lateral rectus muscle (1/6 extrinsic eye muscles)
7
Q
- Facial Nerves
A
- mixed
- convey motor impulses to skeletal muscles of face (everything but chewing)
- transmit parasympathetic motor impulses to glands (tears, snot, saliva)
8
Q
Five branches of facial nerves
A
- Temporal
- Zygomatic
- Buccal
- Mandibular
- Cervical
turquoise zebras bake macaroon cookies
9
Q
- Vestibulocochlear Nerves
A
- chiefly sensory
- vestibular division transmits afferant impulses for sense of equilibrium
- cochlear division transmits afferant impulses for sense of hearing
10
Q
- Glossopharyngeal Nerves
A
- mixed
- innervate tongue and pharynx, motor fibers allow for swallowing
- sensory fibers conduct taste
11
Q
- Vagus Nerves
A
- mixed
- motor fibers are parasympathetic efferants: heart, lungs, abdominal viscera
12
Q
- Accessory Nerves
A
- mixed, chiefly motor
- supply motor fibers to trapezius and sternoclomastoid (move head and neck)
13
Q
- Hypoglossal Nerves
A
- mixed, chiefly motor
- somatic motor fibers to intrinsic and extrinsic muscles of tongue (chewing, swallowing, speech)
