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9 Cards in this Set
- Front
- Back
Action potential arrives at axon terminal and allows for opening, * Calcium then goes through the channels |
1 |
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Calcium causes synaptic vesicles to fuse with membrane of axon terminal * in synaptic vesicles are the neurotransmitters (ACh) |
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ACh is released from vesicles and goes into synaptic cleft, calcium ions get pumped back out to be reset |
3 |
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ACh diffuses in the synaptic cleft and binds onto the sarcolemma receptors |
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After channels are open sodium comes in and potassium leaves. (more sodium decreases polarization) |
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After depolarization... ACh diffuses away, and channel closes (happens all at the same time) |
6 |
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Depolarization inisiates action potential then spreads all along sarcolemma and t-tubules |
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Action potential causes release from Calcium in the sarcoplasmis reticulum |
8 |
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Calcuim ions cause a trigger on a contraction of a cell |
9 |