Unformatted text preview: F. Nueromuscular junction- where the nerve attaches to the muscle. Not directly because there is a gap G. Synaptic vesicles- tiny sacs at end of nerve, they contain acetylcholine (Ach) a neurotransmitter H. When stimulation arrives at terminal end calcium ions stimulate the release of Ach, Ach diffuses across, Ach binds with muscle membrane causes ion channels to open permitting Na ions to flow into the cell causing the muscle fibers to contract...
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- Spring '11
- Human Anatomy, positive ions, causes positive ions, end calcium ions