Neuron Structure

Front

What is the functional unit of the nervous system?

Back

Neuron

Front

What substance insulates axons?

Back

Myelin

Front

Which part of a neuron contains the nucleus?

Back

Cell body

Front

What does CNS stand for and what does it include?

Back

CNS stands for Central Nervous System, which includes the brain and spinal cord.

Front

What are the two parts of the autonomic nervous system?

Back

Sympathetic and Parasympathetic.

Front

What is the role of dendrites in a neuron?

Back

Dendrites receive signals from other neurons.

Front

What is the function of the axon in a neuron?

Back

The axon transmits electrical impulses away from the cell body.

Front

What are nodes of Ranvier?

Back

Nodes of Ranvier are gaps in the myelin sheath that facilitate rapid signal transmission.

Front

What is the difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?

Back

CNS consists of the brain and spinal cord, while PNS includes all the nerves outside the CNS.

Front

What is the function of the myelin sheath?

Back

The myelin sheath insulates axons and increases the speed of nerve impulse transmission.