Nervous System Overview

Front

What are afferent neurons?

Back

Afferent neurons are neuron processes that transmit information from sensory organs to the central nervous system.

Front

What is a neurotransmitter?

Back

A neurotransmitter is the chemical released at the end of an axon terminal that transmits nerve impulses across synapses.

Front

What is the role of neurotransmitters?

Back

Neurotransmitters are signal molecules that transmit nerve impulses across synapses.

Front

What is the central nervous system (CNS) made of?

Back

The central nervous system (CNS) is made of the brain and spinal cord.

Front

What do sensory neurons do?

Back

Sensory neurons carry signals from tissues and organs to the brain and spinal cord.

Front

What are motor neurons?

Back

Motor neurons are responsible for carrying signals from the central nervous system to muscles and glands.

Front

What is the function of glial cells?

Back

Glial cells support and protect neurons, providing structural support and insulation.

Front

What is an action potential?

Back

An action potential is an electrical signal that travels down the cell membrane of a neuron.

Front

What is the difference between efferent and afferent neurons?

Back

Afferent neurons carry signals to the CNS, while efferent neurons carry signals away from the CNS.

Front

What is the synapse?

Back

A synapse is the junction between two neurons where neurotransmitters are released to transmit signals.