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Question: 1 / 495

Which of these processes occurs at a neuromuscular junction?

Impulse transmission

At a neuromuscular junction, impulse transmission is a crucial process that facilitates communication between a motor neuron and a muscle fiber, leading to muscle contraction. When an electrical impulse, or action potential, reaches the end of a motor neuron, it triggers the release of neurotransmitters, primarily acetylcholine, into the synaptic cleft. This neurotransmitter binds to receptors on the muscle cell membrane, initiating a series of events that result in muscle contraction.

This process underscores the significance of the neuromuscular junction as a site where nerve impulses translate into muscular activity. The nature of impulse transmission at this junction is a complex interplay of electrical signaling and chemical signaling, ensuring precise control of muscle movements.

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Active transport

Facilitated diffusion

Diffusion

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