nervous p2 Flashcards
corresponds to the location where nerve
fibers that supply the upper limbs enter and leave the spinal cord
cervical enlargement
the site where the nerve
fibers supplying the lower limbs enter or leave the spinal cord
lumbosacral enlargement
immediately inferior to the lumbosacral enlargement, the
spinal cord tapers to form a conelike region called
conus
medullaris
numerous roots (origins) of spinal nerves extending
inferiorly from the lumbosacral enlargement and conus medullaris
resemble a horse’s tail and are therefore called
cauda equina
connective tissue membranes that
surround the spinal cord and brain
meninges
most superficial and thickest membrane of meninges
dura mater
surrounds the spinal cord made by dura mater
thecal
(the′kal) sac
dura mater around the spinal cord is separated from the periosteum of the vertebral canal by the
epidural
space
next deepest meningeal membrane is a very thin, wispy
arachnoid mater
space between arachnoid membrane and the dura mater
subdural
space
third, deepest meningeal layer, is bound very tightly to the surface of the spinal cord
pia mater