Front

What are relay neurons?

Back

Relay neurons are a type of neuron that connect sensory neurons to motor neurons and are primarily found in the central nervous system.

Front

What is a sensory neuron?

Back

A sensory neuron is a type of neuron that carries signals from sensory receptors (like the ear) to the central nervous system.

Front

What is the function of the optic nerve?

Back

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

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 are motor neurons?

Back

Motor neurons are neurons that carry signals from the central nervous system to muscles, causing them to contract.

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 is the role of the spinal cord?

Back

The spinal cord transmits messages between the brain and the rest of the body and is involved in reflex actions.

Front

What are the three main types of neurons?

Back

The three main types of neurons are sensory neurons, motor neurons, and relay neurons.

Front

What is a reflex action?

Back

A reflex action is an automatic response to a stimulus that does not require conscious thought.