structure and function of nervous system Flashcards
collection of nerve bodies in CNS
nucleus
collection of nerve bodies in PNS
ganglion
where do motor aps travel
efferent; towards body wall
where do sensory aps travel
afferent; towards brain
gyrus
big parts
sulcus
wee thin guys
cranial nerves
CN I olfactory nerve
CN II optic nerve
CN III oculomotor nerve
CN IV trochlear nerve
CN V trigeminal nerve
CN VI abducent nerve
CN VII facial nerve
CN VIII vestibulocochlear nerve
CN IX glossopharyngeal nerve
CN X vagus nerve
CN XI spinal accessory nerve
CN XII hypoglossal nerve
sensory nerves
I, II, VIII
sensory and motor
V, VII, IX, X
motor nerves
III, IV, VI, XI, XII
What does the spinal cord pass through
foramen magnum
what is the psinal cord protected by
vertebral canal
enlargemnt of spinal cord
cervical and lumbosaccral
what level does the spinal cord end
l1/l2; conus medullaris
cauda equina
where lumbar and sacral nerve roots descend to their intervertebral foraminae
what do spinal nerves supply
soma - body wall
what do spinal nerves connect to structures of the soma via
rami
what do spinal nerves connect to the spinal cord via
roots and rootlets
t4 dermatome
nipple
t10 dermatome
mbilicus
pupils in fight or flight
dilate
arterioles in fight or flight
dilate so skin feels cold
what does sympathetic outflow exit spinal cord with
t1-l2 spinal nerves
what does sy,pathetic outflow travel via to reach organs
splacnhic nerves
