Cranial Nerves: Afferent (sensory) or Efferent (Motor)

olfactory

afferent (sensory) smell: nose

Optic

afferent (sensory) sight: eye

Oculomotor

efferent (motor)

4 of 6 eye muscles

opens eyes and keep them open

autonomic

Trochlear

efferent (motor)

5th eye muscle

moves eye laterally and inferiorly

Trigeminal

afferent (sensory)
facial sensation and temperature

efferent (motor) voluntary motor: muscles of chewing, biting down, and grinding

Abducens

efferent (motor)

6th eye muscle

abducts eye

facial

afferent (sensory) taste:
anterior tongue

efferent (motor)
facial movement

vestibulocochlear (acoustic nerve)

afferent (sensory) hearing: ear; proprioreception (balance): ear

glossopharyngeal

afferent (sensory) taste: posterior tongue blood pressure and CO2 levels to brain

efferent (motor)
swallowing

vagus

afferent (sensory)
Parasymphatetic control of internal viscera

accessory

efferent (motor)

voluntary control of muscles below head

hypoglossal

efferent (motor) voluntary motor: muscles of tongue.

Nerve

bundle of axons in parallel

Nucleus of neuron

Nucleus is a neuron cell body

Neuron cell body

main part of nerve cell that houses nucleus

referred to in group as nuclei o ganglia

Nuclei vs ganglia

nuclei = group of neuron cell bodies in CNS, single term= nucleus

Ganglia = group of neuron cell bodies outside CNS, single term = ganglion

Only cranial nerve not in a pair

Olfactory nerve

Difference of afferent and efferent

afferent takes info to brain (senses)

efferent takes info from brain (motor control)

nerve can be one or both

Autonomic

automatically controlled by brain

smoothe muscle function and intrinsic eye muscles like iris

Proprioreception

ability to sense your position in 3-d space

balance

Sympathetic vs parasymphatetic

symphatethic = fight or flight

parasympathetic= nervous system that is part of control of resting and digestion

Baroreceptor vs Chemoreceptor

baroreceptor = receptors for pressure (blood pressure receptors)

chemoreceptor = receptors for chemicals (levels of CO2)

Structure given, what nerves come out

Nerves, what structures they pass through