Neuromuscular junction?

The neuromuscular junction is a specialized synapse between a motor neuron and a muscle fiber. It is responsible for transmitting signals from the nervous system to the muscles, allowing for voluntary muscle movement. When an action potential reaches the end of a motor neuron, it triggers the release of a neurotransmitter called acetylcholine into the synaptic cleft. Acetylcholine then binds to receptors on the muscle fiber, causing depolarization and ultimately leading to muscle contraction. The neuromuscular junction plays a crucial role in the control and coordination of muscle movements in the body.