Anatomy The Nervous System Study Guide

Front

What are the two main divisions of the nervous system?

Back

The two main divisions of the nervous system are the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).

Front

What is the function of motor nerves?

Back

Motor nerves, also known as efferent nerves, carry signals from the brain and spinal cord to muscles and glands to initiate movement or action.

Front

What are neurotransmitters?

Back

Neurotransmitters are chemicals that transmit signals across the synapse from one neuron to another.

Front

What is the role of neurons in the nervous system?

Back

Neurons are specialized cells that transmit messages in the form of fast-moving electrical energy throughout the nervous system.

Front

What are neuroglia?

Back

Neuroglia are the supporting cells of the Central Nervous System (CNS) that provide structural support, protection, and nourishment to neurons.

Front

What is the synapse?

Back

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

Front

What is the difference between afferent and efferent nerves?

Back

Afferent nerves carry sensory information to the central nervous system, while efferent nerves carry motor commands from the central nervous system to the muscles.

Front

What is the function of the spinal cord?

Back

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

Front

What are the main parts of a neuron?

Back

The main parts of a neuron include the cell body, dendrites, and axon.

Front

What is the function of dendrites?

Back

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