Nervous system

Front

What is the optic nerve?

Back

The optic nerve is a sensory nerve that transmits visual information from the retina to the brain.

Front

What is a motor neuron?

Back

A motor neuron is a type of neuron that connects the central nervous system to muscles, enabling movement.

Front

What are relay neurons?

Back

Relay neurons are neurons that connect sensory and motor neurons, facilitating communication within the nervous system.

Front

Where does the message for a reflex response originate?

Back

The message for a reflex response originates from the spinal cord.

Front

Where does the message for a voluntary response originate?

Back

The message for a voluntary response originates from the brain.

Front

What is the function of sensory neurons?

Back

Sensory neurons are responsible for carrying signals from sensory receptors to the central nervous system.

Front

What is the role of the spinal cord in the nervous system?

Back

The spinal cord acts as a major conduit for information traveling to and from the brain and is involved in reflex actions.

Front

What is the difference between voluntary and involuntary responses?

Back

Voluntary responses are controlled by the brain and require conscious thought, while involuntary responses are automatic and often mediated by the spinal cord.

Front

What is the central nervous system (CNS)?

Back

The central nervous system consists of the brain and spinal cord, and it processes information and coordinates responses.

Front

What are the main components of the nervous system?

Back

The main components of the nervous system are the brain, spinal cord, and peripheral nerves.