Nervous System Flashcards
two divisions of the ervous sytem
cerebro-spinal system
sympathetic system
connected with sense organs and the voluntary muscles
cerebro-spinal system
connected with viscera and blood vessels
sympathetic system
CNS
brain and spinal cord
PNS
cranial nerves
spinal nerves
ganglia
consisting medulla oblongata and cerebellum
hindbrain
cerebral hemisphere and twixt brain
forebrain
arrangement of cranial nerves
prootic ganglion
petrosal
jugular
supplies the olfactory organ in the nasal capsule
olfactory
supplies the retina of the eye
optic
supplies the eyeball muscles
oculomotor
supplies the superior oblique muscle of the eyeball
trochlear
a large nerve, arising from the anterior part of medulla oblongata
Trigeminal
supplies the external rectus muscle
abducent
joins the prootic ganglion
facial
enters the auditory capsules
Auditory
supplies the muscle of the throat and the tongue
Glossopharyngeal
supplies the larynx heart lung and stomach
Vagus
continuation of the brain
spinal cord
corresponding to the regions of the arms
brachial enlargement
corresponding to the region of the hind legs
lumbar enlargement
spinal nerves roots
dorsal
ventral roots
1st spinal nerves
hypoglossal
a long nerve cord on each side of the body below the backbone
sympathetic trunk
