Nervous System Structure and Functions

Front

What is the part of the neuron that takes information away from the cell body?

Back

Axon

Front

What does the somatic nervous system control?

Back

Voluntary movements and sensory perception

Front

What are the bundles of tiny threadlike cells that carry messages to and from the brain?

Back

Nerves

Front

What is the main function of the nervous system?

Back

To control the body's activities by relaying messages.

Front

How does light enter the eye?

Back

Through the pupil.

Front

What are dendrites?

Back

Dendrites are the parts of a neuron that receive signals from other neurons.

Front

What is the role of the central nervous system?

Back

The central nervous system processes information and coordinates responses.

Front

What is the difference between the central nervous system and the peripheral nervous system?

Back

The central nervous system consists of the brain and spinal cord, while the peripheral nervous system includes all other neural elements.

Front

What is a reflex action?

Back

A reflex action is an involuntary and nearly instantaneous movement in response to a stimulus.

Front

What is the function of myelin sheath?

Back

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