Assertion: acetylcholine | /r/HasProperty | released into the space
Facets:
value: between the presynaptic terminal
type: LOCATION
value: between the muscle fiber
type: LOCATION
Source sentences:
text: When a motor neuron generates an action potential, it travels rapidly along the nerve until it reaches the neuromuscular junction, where it initiates an electrochemical process that causes acetylcholine to be released into the space between the presynaptic terminal and the muscle fiber.