Why Is Motor End Plate Important?

The axon then branches through the muscle and connects to the individual muscle fibers at the neuromuscular junction. The folded sarcolemma of the muscle fiber that interacts with the neuron is called the motor end-plate; the folded sarcolemma increases surface area contact with receptors.

What does the motor end plate do in muscle contraction?

Mechanism of action. Botulinum toxin's effects occur at the motor end plate. Muscle contraction occurs when motor nerve terminal impulse reaches a nerve ending, which in turn releases acetylcholine across the neuromuscular gap to the muscle signaling muscle contraction.

What's the motor end plate?

The specialized postsynaptic region of a muscle cell. The motor endplate is immediately across the synaptic cleft from the presynaptic axon terminal. Among its anatomical specializations are junctional folds which harbor a high density of cholinergic receptors.