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CNS a & p
| Question | Answer |
|---|---|
| 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
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