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CNS a & p

Protective covering(s) of brain and spinal cord outer-cranial bones and vertebrae, inner are the meninges
3 layers meninges dura mater, arachnoid mater, pia mater
strong white fibrous tissue, serves as the outer layer of the meninges dura mater
cobweb-like layer,innermost layer of the meninges arachnoid
transparent mater, adheres to the outer surface of the brain and spinal cord and contains blood vessels. pia mater
3 extensions of dura mater Falx cerebri, Falx cerebelli, Tentorium cerebelli
projects downward into longitudinal fissure to form a partition between the two cerebral hemispheres Falx cerebri
separates the hemispheres, of the cerebellum Falx cerebelli
separates the cerebellum from the cerebrum Tentorium cerebelli
spaces between and around the meninges epidural spaces, subdural space, subarachnoid space
outside the dura mater but inside the bony coverings of the spinal cord epidural space
space is between the dura mater and arachnoid mater, contains lubricating serous fluid subdural space
space under the arachnoid and outside the pia mater. contains cerebrospinal fluid subarachnoid space
what are the 2 bundles of nerve fibers/roots that project from each side of the spinal cord dorsal nerve root ventral nerve root
dorsal and ventral nerve roots join together to form a single nerve called spinal nerve
“horse tail” of spinal nerve roots called the cauda equina
lowest part of the brainstem medulla oblongata
uppermost part of the brainstem midbrain
lies above the medulla and below the midbrain pons
part of the brain that attaches to the spinal cord medulla oblongata
second largest part of the brain cerebellum
internal white matter of the cerebellum (literally “tree of life arbor vitae
both the cerebellum and the cerebrum have numerous grooves, name 2 sulci gyri
“between brain” located between the cerebrum and the midbrain diecephalon
dumbbell-shaped mass of gray matter made up of many nuclei thalamus
the largest and uppermost division of the brain, consists of two halves cerebrum
Created by: srehrauer