Spinal Cord and Meninges Flashcards
area of cell bodes within the CNS
gray matter
an area of axons or fibers within the CNS
white matter
arising from the dorsal surface of the spinal cord, contains ______ neurons only
dorsal root, sensory
an enlarged portion of the dorsal root, contains cell bodies of sensory neurons
dorsal root ganglion
arising from the ventral surface of the spinal cord, contains ____ neurons only
ventral root, motor
the ventral root joins with the dorsal root to make the ______
spinal nerve
the spinal nerve divides into a larger ____________ which supplies the entire ______ trunk as well as the appendages
ventral ramus, anterior
the __________ supplies all the structures of the back
dorsal ramus
three meninges that surround and protect the brain and spinal cord:
dura mater, arachnoid mater, and pia mater
outermost meninx, composed of _________________, surrounds the brain, extends through the ______, and courses inferiorly to the _______ in the vertebral canal
dura mater, dense fibrous connective tissue
foramen magnum, coccyx
the space external to the dura mater is termed the ________ space
contains adipose tissue in the form of globules of _____
in adition to this, this space contains _______
epidural
fat
batson’s veins
the middle meninx, delicate, loose, netlike membrane that surrounds the brain
separated from the pia mater by ____________, which is the space containing the ___________
arachnoid mater
subarachnoid space
CSF
innermost layer of the 3 meninges, very delicate connective tissue that adheres to the surface of the brain and spinal cord
pia mater