Which nerves transmit impulses from the cen¬tral nervous system towards muscle cells?

The nerves that transmit impulses from the central nervous system towards muscle cells are known as motor neurons. These neurons are part of the peripheral nervous system and they carry signals from the brain and spinal cord (central nervous system) to the muscles and glands.

Here are the steps of how this process works:

1. The process begins in the central nervous system, with the generation of a signal or impulse. This could be a response to external stimuli, like touching a hot surface, or it could be part of a planned action, like deciding to move your hand.

2. This impulse travels along a chain of nerve cells, or neurons, towards the peripheral nervous system. The neurons communicate with each other through synapses, which are small gaps where signals are transmitted from one neuron to the next.

3. The impulse eventually reaches a motor neuron. The cell body of a motor neuron is located in the spinal cord, and it has a long extension called an axon that reaches all the way to the muscle cell.

4. The motor neuron transmits the impulse to the muscle cell through a synapse. This causes the muscle cell to react in some way, such as contracting or relaxing.

5. This entire process happens incredibly quickly, allowing us to react to stimuli or move our bodies almost instantly.