The Nervous System

Front

What is a neurotransmitter?

Back

A chemical messenger that transmits signals across a synapse from one neuron to another.

Front

What is the innermost meningeal layer of the brain?

Back

Pia mater, which is the delicate inner layer that directly covers the brain.

Front

What part of the brain is responsible for coordinating voluntary muscle movement?

Back

The Frontal lobe, which is involved in planning, movement, and higher cognitive functions.

Front

What action is controlled by the autonomic nervous system?

Back

Increased heart rate in response to exercise, which is an involuntary response.

Front

What is the function of the cerebellum?

Back

The cerebellum coordinates voluntary movements, balance, and posture.

Front

What are the three main parts of the nervous system?

Back

Central nervous system (CNS), peripheral nervous system (PNS), and autonomic nervous system (ANS).

Front

What is the role of the spinal cord?

Back

The spinal cord transmits signals between the brain and the rest of the body and coordinates reflexes.

Front

What is the difference between the sympathetic and parasympathetic nervous systems?

Back

The sympathetic nervous system prepares the body for 'fight or flight' responses, while the parasympathetic nervous system promotes 'rest and digest' activities.

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 sensory neurons?

Back

Sensory neurons transmit sensory information from receptors to the central nervous system.