Neuromuscular Junctions...
In this comic that we
have created we are talking about the muscles contract and relax. What causes
these movements? Well muscles are controlled by the nervous system, which is
run by nerve cells. All of these are attached they are then a stimulation, this
is know as a motor unit.
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| This is step one where the nerve pulse reaches a synaptic end bulb, it triggers release of the neurotransmitter acetylcholine. |
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| The motor end plate contains receptors onto the free acetylcholine "ACh." This then causes ion channels to open and allow the sodium ions to then flow across the membrane into the muscle cell. |
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| This is the generation of muscle action potential. |
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| Lastly this shows the breakdown of ACh. This occurs within the synaptic cleft. |
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