Answer:
Neuromuscular Junction - It is a chemical synapse formed by the contact between a motor neuron and a muscle fiber.
Function- As the motor neuron are able to transmit the required signals to the muscle fiber, which causes the muscle contraction.
Explanation:
Steps in neuromuscular transmission:
- calcium entry into the presynaptic terminus.
- diffusion of Ach across cleft.
- combination of Ach with post-synaptic receptors and Ach breakdown via esterase.
- opening of Na + /K + channels (cation channels).
- postsynaptic membrane depolarization (EPP).
