Photo by Diane Williams | Defense Threat Reduction Agency's Chemical and Biological Technologies Department | 04.24.2024
(Left) Nerve cell and the Neuromuscular Junction (NMJ) where the neurotransmitter acetylcholine triggers a muscle contraction through the exchange of sodium (Na) and potassium (K) across muscle fibers. Voltage-gated potassium and calcium channels on the nerve cell regulate the amount of acetylcholine in the NMJ. The greater the calcium influx into the nerve cell, the more acetylcholine is......
