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- long cell extensions
- cytoplasm covreed with cell membrane |
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| - carry signals toward to the cell body |
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Definition
| - carry signals away to the cell body |
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Definition
| - signals from sensory to spinal cord and brain |
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- cover fibre
- help fibre repair itself wen injury |
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Definition
- cover fibre
- make from Schwann cells |
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Definition
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| - small space where fibre expose |
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Definition
- fibre not transmitting a signal
- keep Na out and K inside
- negative in positve out |
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Definition
- nerve impulse
- Na gates open and it rushes in
- reverse charges, + in, K out& - out
- happens in deplolarization |
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Definition
- diffusion of Na into nerve cell
- occurs wen an implse occur |
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Definition
- Na and + out
- k and - in |
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Definition
- action potential occur @ nodse
- signal skips from node to node
- signal travels faster |
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Definition
| - recovery time before a neroun produce another action potential |
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Definition
- charged membrane
- caused by unequal + ion distribution |
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Definition
- space btw neurons (end of axon and nxt neuron dendrites)
- btw nerous and effectors |
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Term
| three different types of neurons 3 |
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Definition
- Sensory Neurons
- Interneurons
- Motor Neurons |
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Term
| synapse - wen a signal arrive @ axon end 6 |
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Definition
Know the process of a synapse.
- Calcium enter fibre,releases neurotransmitters
- Neurotransmitters spill into snaptic gap(synapse) postsynaptic membrane
- depo in next neron
- acetylcholine release
- cholinesterase release
- cholinesterase beaks down the acetylcholine to stop depo |
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Definition
| - carry impulse to synapse |
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| - carry impulse away from synapse |
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- released from vesicle in the end plates of neurons
- make postyaptic membrane more permeable to Na |
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Definition
- enzyme rleased from vesicles in the end of nerurons after acetylcholine
- break down acetylcholine |
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