Neuromuscular Junction: How the Nervous System Controls Muscle Movement

The nervous system connects to the skeletomuscular system through the neuromuscular junction.

- The neuromuscular junction is a chemical synapse between a motor neuron (a nerve cell that controls muscle contraction) and a skeletal muscle fiber.

- When an action potential reaches the end of a motor neuron, it causes the release of a neurotransmitter called acetylcholine (ACh).

- ACh binds to receptors on the muscle fiber, which causes the muscle fiber to contract.