Physiology 502 - Exam 1
Central Nervous System - ANS-Brain and Spinal Cord
Ganglion - ANS-Group of Neuronal Cell Bodies outside CNS
Nucleus - ANS-Cell body inside CNS
Nerve - ANS-Axons outside CNS
Track - ANS-Axons inside CNS
Gray matter, nucleus, cortex - ANS-CNS regions rich in cell bodies
White matter, lemniscus, capsule - ANS-CNS regions rich in neuronal processes (axons and
dendrites)
Interneuron - ANS-Stays within a region/segment
What are sulci and gyri? - ANS-Bumps and grooves in the brain that increase SA for more
neurons
Four Divisions of the Brain - ANS-Cerebrum, Diencephalon, Cerebellum, Brainstem
Requirement to be a cranial nerve? - ANS-Nerves above the shoulders
Cranial Nerve 1 - ANS-Olfactory Nerve, afferent-carries input from olfactory epithelium
Cranial Nerve 2 - ANS-Optic Nerve, afferent-carries input from eyes
Cranial Nerve 3 - ANS-Oculomotor, efferent-move eyeball up,down, medially. Move eyelid and
help make lens smaller/bigger
Cranial Nerve 4 - ANS-Trochlear, efferent-move eye laterally and downward
Cranial Nerve 5 - ANS-Trigeminal Nerver, Efferent - chewing muscles and Afferent - carries info
from skin, skeletal muscles of face, nose, mouth and teeth sockets
Cranial Nerve 6 - ANS-Abducens, Efferent - innervates skeletal muscles moving eye laterally
Central Nervous System - ANS-Brain and Spinal Cord
Ganglion - ANS-Group of Neuronal Cell Bodies outside CNS
Nucleus - ANS-Cell body inside CNS
Nerve - ANS-Axons outside CNS
Track - ANS-Axons inside CNS
Gray matter, nucleus, cortex - ANS-CNS regions rich in cell bodies
White matter, lemniscus, capsule - ANS-CNS regions rich in neuronal processes (axons and
dendrites)
Interneuron - ANS-Stays within a region/segment
What are sulci and gyri? - ANS-Bumps and grooves in the brain that increase SA for more
neurons
Four Divisions of the Brain - ANS-Cerebrum, Diencephalon, Cerebellum, Brainstem
Requirement to be a cranial nerve? - ANS-Nerves above the shoulders
Cranial Nerve 1 - ANS-Olfactory Nerve, afferent-carries input from olfactory epithelium
Cranial Nerve 2 - ANS-Optic Nerve, afferent-carries input from eyes
Cranial Nerve 3 - ANS-Oculomotor, efferent-move eyeball up,down, medially. Move eyelid and
help make lens smaller/bigger
Cranial Nerve 4 - ANS-Trochlear, efferent-move eye laterally and downward
Cranial Nerve 5 - ANS-Trigeminal Nerver, Efferent - chewing muscles and Afferent - carries info
from skin, skeletal muscles of face, nose, mouth and teeth sockets
Cranial Nerve 6 - ANS-Abducens, Efferent - innervates skeletal muscles moving eye laterally
