In healthy people, binding of the molecule acetylcholine (ACh) to its receptor (AChR) on skeletal muscle cells triggers ...

Muscle contraction occurs when these myofilaments move closer together when stimulated by the release of the neurotransmitter acetylcholine from a nerve cell that communicates with the muscle fiber.

Acetylcholine is particularly important ... these drugs may help your pupils dilate (to take in more light) or slow down ...

In the case of myasthenia gravis, the body produces autoantibodies that target acetylcholine receptors (AChRs), which are essential triggers for normal muscle contraction functions. Medications ...