Nervous System

Front

What is the peripheral nervous system?

Back

The peripheral nervous system (PNS) consists of all the nerves outside the brain and spinal cord. It connects the central nervous system to the limbs and organs.

Front

What is the central nervous system?

Back

The central nervous system (CNS) is made up of the brain and spinal cord. It processes information and coordinates activity throughout the body.

Front

What is the role of the nervous system in the body?

Back

The nervous system acts as the manager of body systems, communicating bodily functions and responding to internal and external stimuli.

Front

What are sensory neurons?

Back

Sensory neurons are nerve cells that carry signals from sensory receptors to the central nervous system, allowing us to perceive stimuli.

Front

What are motor neurons?

Back

Motor neurons are nerve cells that carry signals from the central nervous system to muscles and glands, enabling movement and responses.

Front

How do sensory neurons and motor neurons work together?

Back

Sensory neurons bring stimulus input to the spinal cord or brain, and the brain or spinal cord sends a motor neuron response to execute a movement.

Front

What is the function of the trachea?

Back

The trachea is part of the respiratory system, not the nervous system. It is a tube that connects the throat to the lungs, allowing air to pass.

Front

What is a reflex action?

Back

A reflex action is an automatic response to a stimulus that occurs without conscious thought, often involving sensory and motor neurons.

Front

What is the function of the brain?

Back

The brain processes information, controls thoughts, emotions, and movements, and coordinates activities of the body.

Front

What is the spinal cord?

Back

The spinal cord is a long bundle of nerves that runs down the back, transmitting signals between the brain and the rest of the body.