Term
| 2 major cells of the nervous system |
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Definition
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Definition
| Long extensions that conduct signals over long distances |
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Definition
| Bundle of axons from many neurons |
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Definition
| carry information into nervous system |
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Definition
| carry commands to muscles and glands |
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Definition
| Support during development, supply nutrients, maintain extracellular environment and insulate axons |
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Definition
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Term
| Peripheral Nervous System |
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Definition
| Outside the Central Nervous System |
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Term
| 4 Parts of the Neuron and function |
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Definition
Cell Body: nucleus and majority of organelles
Dendrites: receive information
Axon: long, carry information away
Axon Terminals: form synapse |
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Term
| Schwann Cell covering is composed of? |
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Definition
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Definition
| Space between Schwann Cells |
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Definition
| Contribute to blood-brain barrier. Blood carries toxins. |
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Definition
| The result of ions moving across the plasma membrain |
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Term
| Primary ions involved in action potential |
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Definition
Sodium
Potassium
Calcium
Chloride |
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Term
| What is the function of the NaK pump? |
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Definition
| uses ATP to move Na ions from inside the cell and exchanges them for K from outside the cell |
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Term
| How does an nerve impulse travel across the synapse? |
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Definition
| communication between neurons or target cells. Motor neuron releases acetylcholine from its axon terminals. |
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Definition
| Effects CNS, prevents normal uptake |
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Definition
| Effects CNS, pain control, sleep/wake, mood. LSD mimic action. |
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