Term
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Definition
| 3 layers of connective tissue that surrounds the brain and spinal cord |
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Term
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Definition
1.Dura mater
2.Aracnoid mater
3. Pis mater |
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Term
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Definition
outermost layer of the meninges; tough; thick external fibrous layer
-falx cerebri & tentorium |
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Term
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Definition
| thin intermediate layer arachnoid granulations (villa) allow CSF to flow into sinuses and back into the venous system |
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Term
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Definition
| delicate internal vascular layer; forms the choroid plexus of the ventricles |
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Term
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Definition
| the major site of cerebral spinal fluid formation |
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Term
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Definition
| space between the pia & arachnoid mater that contians CSF, and acts like a shock absorbing cushion |
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Term
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Definition
| space between dora mater & bone |
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Term
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Definition
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Term
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Definition
| series of fine triangular ligaments that allow the cord to attach to the dura |
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Term
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Definition
| spinal nerves that arise from a small bundle of dorsal filaments which unite |
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Term
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Definition
| bundle of ventral filaments |
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Term
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Definition
| belo the point in which the spinal cord is NO longer occupied by the cord but instead by a leash of vertically runnin lubar & sacral nerve roots |
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Term
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Definition
| coverings of the brain that lie immediately internal to the cranium. They protect the brain from the supporting framework for arteries, veins & verious sinuses & enclose the subarachnoid space |
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Term
Arachnoid villi
(granulations) |
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Definition
| allow CSF to flow into sinuses & back into the venous system |
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Term
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Definition
adherent to internal surface of the cranium; a 2 layered membrane
1. external periosteal layer
2. internal neningeal layer |
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Term
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Definition
| roof above cerebellum that holds up ocsepital lobes |
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Term
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Definition
| keeps cerebral hempispheres and cerebellum in place |
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Term
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Definition
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Term
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Definition
-
cerebellum
- brainstem(medulla,pons, midbrain)
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Term
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Definition
- diencephalon
- cerebral hemispheres
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Term
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Definition
| formed by the right & left cerebral hempisheres; the largest portion of the brain |
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Term
| Cerebrospinal fluid (CSF) |
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Definition
| clear liquid; similar to blood; provides nutrients, but less protein & different ion concentration |
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Term
Interventricular
foramina |
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Definition
| channels that connect the paired lateral ventricles ith the 3rd ventricle @ the midline of the brain |
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Term
| locations of 4 ventricles |
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Definition
1. R cerebral hemisphere
2. L cerebral hemisphere
3. diencephalon
4.pons & upper medulla |
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Term
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Definition
| w/i the substance of the brain & external veins, that drain into a large venous sinuses, internal jugular veins |
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Term
Blood Brain Barrier
(BBB) |
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Definition
| regulates & restricts movement of products w.i nervous system; prevents entry of patheogeons, certain meds& protein antibodies |
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Term
| Blood Cerebrospinal fluid barrier |
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Definition
| formed by the choroid plexus, epitelial cell & the arachoid membrane |
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Term
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Definition
| brings carbohydrates & oxygen needed for metabolism |
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Term
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Definition
| the internal carotid arteries branch at the base of the brain associated w. branches that feed up the cerebral hemisphere. |
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Term
Anterior cerebral artery
(ACA) |
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Definition
| anteriosuperior parts of the cerebrum |
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Term
Middle cerebral artery
(MCA) |
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Definition
| lateral cerebral hemispheres |
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Term
Posterior cerebral arteries
(PCA) |
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Definition
| occipital lobe, mid brain, parts of the temporal lobe |
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Term
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Definition
| opening from 4th ventricle that allows CSF to go outside the spinal cord |
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Term
| Basilar & Vertibral arteries are... |
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Definition
| parts of the blood supply to the base of the brain that bring blood primaraly to the cerebellum are called... |
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Term
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Definition
- posterior/inferior cerebrllar arteries
- spinal arteries anterior/posterior
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Term
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Definition
| anterior/inferior cerebella arteries & superior cerebellar arteries |
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