Term
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Definition
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Term
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Definition
-outer layer
-white fibrous CT |
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Term
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Definition
-middle layer
-filled with CSF
-contains blood vessels |
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Term
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Definition
-inner layer
-tightly bound to brain and spinal cord |
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Term
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Definition
-4
-connected to eachother and to central canal of spinal cord
-lined by ependymal cells
-contain CSF |
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Term
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Definition
-watery
-less protein/diff ion conc. then plasma
-constant volume
-buoyancy
-protection
-nourishment |
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Term
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Definition
-produce CSF at a constant rate
-hang from the root of each ventricle
-clusters of capillaries enclosed by pia mater and a layer of ependymal cells (regulate CSF) |
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Term
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Definition
-excess CSF in ventricles
-usually caused by a ventricular obstruction |
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Term
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Definition
-created by tight junctions between endothelial cells
-basement later of blood vessels
-feel of astrocytes
-helps maintain a stable environment for the brain |
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Term
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Definition
-created by tight junctions between endothelial cells
-basement later of blood vessels
-feel of astrocytes
-helps maintain a stable environment for the brain |
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Term
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Definition
-glucose, essential amino acids, electrolytes
-ineffective against lipid soluble substances (alchohol, nicotine,anesthetics) |
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Term
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Definition
-*vomiting center (CTZ)
-*hypothalamus
-necessary to monitor chemical composition of the blood |
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Term
|
Definition
-83% of total brain mass
-gyri-ridges
-sulci-grooves
-fissures-deep grooves/separate brain regions |
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Term
| transverse cerebral fissure |
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Definition
| -separates cerebellum and cerebrum |
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Term
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Definition
| -separates frontal lobe and parietal lobe |
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Term
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Definition
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Term
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Definition
-anterior
-full maturity at age 25
-voluntary movement
-attention
-goal directed behavior
-some speech (Broca's)
-damage-can understand, difficulty speaking,writing, sign language |
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Term
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Definition
-sensory integration
-spatial coordination |
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Term
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Definition
-speech (Wernicke's)
-memory
-hearing
-some emotional processes
-*damage-can speak "word salad" |
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Term
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Definition
-smallest
-visual processing
-damage-hallucinations and illusions |
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Term
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Definition
| visual images with no external stimuli |
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Term
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Definition
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Term
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Definition
-"executive suite"
-conscious mind
-thin gray matter
-billions of neurons
-40% mass of brain
-awareness
-sensory perception
-voluntary motor initiation
-communication
-memory storage
-understand |
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Term
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Definition
-thick bundle of nerve fibers
-connects 2 hemispheres |
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Term
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Definition
-rare genetic syndrome
-partial or complete absence of corpus callosom
-seizures,visual disturbances,learning deficits
-X link dominant
-symptoms before 5 months of age |
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Term
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Definition
| -manage waste, ions, and nutrients |
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