Functions of the Nervous System

Front

What is the primary function of motor neurons?

Back

Motor neurons carry instructions from the Central Nervous System (CNS) to organs or organ systems, primarily muscles.

Front

What type of cells support neuron cell bodies in the Peripheral Nervous System (PNS)?

Back

Satellite cells surround and support neuron cell bodies in the PNS.

Front

What is the outermost covering of the Central Nervous System (CNS)?

Back

The Dura Mater is the tough and fibrous outermost covering of the CNS.

Front

Which cells cover every axon outside the Central Nervous System (CNS)?

Back

Schwann cells cover every axon outside the CNS.

Front

Where are bipolar neurons primarily found?

Back

Bipolar neurons are found in sensory organs, specifically in sight, smell, and hearing receptors.

Front

What is the role of ependymal cells in the nervous system?

Back

Ependymal cells line the ventricles of the brain and the central canal of the spinal cord, helping to produce and circulate cerebrospinal fluid.

Front

What is the function of astrocytes in the nervous system?

Back

Astrocytes provide structural support, regulate blood flow, and maintain the blood-brain barrier.

Front

What is the difference between the Central Nervous System (CNS) and the Peripheral Nervous System (PNS)?

Back

The CNS consists of the brain and spinal cord, while the PNS includes all the nerves that branch out from the CNS to the rest of the body.

Front

What is the function of oligodendrocytes?

Back

Oligodendrocytes produce myelin in the Central Nervous System, which insulates axons and increases the speed of nerve impulse transmission.

Front

What is myelin and why is it important?

Back

Myelin is a fatty substance that surrounds axons, allowing for faster transmission of electrical signals along the nerve.