Nerve Cells Review

Front

What is the main function of a neuron?

Back

To transmit electrical impulses throughout the body.

Front

What are the three main parts of a neuron?

Back

Dendrites, Cell Body, Axon.

Front

What is the role of dendrites in a neuron?

Back

To receive signals from other neurons.

Front

What is the function of the axon?

Back

To transmit impulses away from the cell body to other neurons or muscles.

Front

What is myelin and its function?

Back

Myelin is a fatty substance that insulates axons and increases the speed of impulse transmission.

Front

What are nodes of Ranvier?

Back

Gaps in the myelin sheath that facilitate rapid signal transmission along the axon.

Front

What is the role of oligodendrocytes?

Back

To produce myelin in the central nervous system, providing insulation and protection to neurons.

Front

What is a bipolar neuron?

Back

A type of neuron that has two extensions (one axon and one dendrite) and is often found in sensory pathways.

Front

What is the difference between sensory neurons and motor neurons?

Back

Sensory neurons carry signals to the central nervous system, while motor neurons carry signals away from the central nervous system to muscles.

Front

What is the function of Schwann cells?

Back

To produce myelin in the peripheral nervous system and support the regeneration of damaged nerves.