Something (or things) that causes a reaction or memory.

Body organs such as eyes, ears, tongue, skin, and nose

A small part of a sensory organ that transfers sensory inputs to a nerve

A mechanical (motion), chemical, or electromagnetic (light) signal that stimulates our sensory receptors.

a type of cell that captures information and moves it to another place.

Nerve that carries messages to the brain and/or spinal cord

Nerve that carries messages AWAY from the brain and spinal cord to muscles and organs so that they can take action on a stimulus.

an action performed in response to a situation, event, or stimulus

stimulus -> sensory nerve -> spinal cord -> brain -> motor nerve -> response

A long-term storage of an event or thing in the brain

What a plant or animal does

Organ that serves as the primary control center of the nervous system in all vertebrate and most invertebrate animals

A chemical that enters the body

Signals that enter the body in the form of electromagnetic stimuli

Signals that enter the body through physical touch or vibration

A cell specialized for transmitting fast electrochemical signals

respond to chemicals in taste and smell and in internal changes.

respond to changes in temperature

respond to touch, pressure, vibration, stretch, and itch

respond to light

pain receptors

monitor the position and movement of skeletal muscles and joints