Term
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Definition
| Makes up the brain, the spinal cord and nerves |
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Definition
| convert stimuli to impulses |
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Term
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Definition
| support and protects neurons |
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Term
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Definition
| Intergrates and coordinates all the body's activities |
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Term
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Definition
| the brain and the spinal cord |
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Term
| Peripheral Nervous System |
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Definition
Nerves outside the brain and spinal cord |
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Term
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Definition
Axon, Cell Body, Dendrites.
Very fragile, therefore axon protected by myelin sheath
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Term
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Definition
Covered by plasma membrane of Schwann cells.
Covers axon but not all.
Impulses jump from one open space to another. |
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Term
| Protection of Neurons (3) |
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Definition
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Term
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Definition
| Duramater, Arachnoid, Pia mater ( thickest to thinnest ) |
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Term
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Definition
| Tough & Leathery; outer covering of the brain |
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Term
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Definition
| Attaches to the lower layer of the brain (pia mater); web-like extentions. |
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Term
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Definition
| thinnest layer; wrapped closely around the brain |
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Term
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Definition
| Swelling of meninges due to bacteria or virus |
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Term
| Cerebrospinal Fluid & it's purpose (3) |
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Definition
Fills the space between arachnoid and pia mater, internal cavities of the brain & spinal chord;
For shock absorption, nourishment & support
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Term
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Definition
Protects CNS Filters what enters the cerebrospinal fluid. Only lipid-soluble substances including oxygen and carbon dioxide are permitted to pass. (caffeine & alcohol also permitted) |
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Term
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Definition
Consists of brain and spinal cord. Processes all of the information from the rest of the nerves in the body. Sends messages & governs actions. |
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Term
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Definition
divided by longitudinal fissure. Right hemisphere controls left side of the body. Left hemisphere controls right side of the body. |
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Term
| Parts of the brain (5) & functions |
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Definition
Frontal : concious thought Parietal: manipulation of object; judgement Occipital: sense of sight Temporal: sense of smell and sound Cerebellum: balance & motion |
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Term
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Definition
Lower part of the brain; attaches the spinal cord and brain; sends messages; responsible for automatic functions: heart rate, respiration and perceptual functions (locating sound) |
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