Biological Science / Psychology Review - Stimulus Response Model ✨

What is the Stimulus Response Model?

The stimulus-response model describes how the body detects a change (stimulus), processes it, and responds through effectors to maintain balance, or homeostatsis

What is a stimulus?

A stimulus is any change in the internal or external environment

What is a receptor?

A receptor is a special type of nerve cell that respond to certain stimuli

What are mechanoreceptors?

This is a type of receptor responds to mechanical forces

What is a chemoreceptor?

This is a type of receptor that responds to chemical changes

What is a photoreceptor?

This is a type of receptor that responds to light

What is a thermoreceptor?

This is a type of receptor that responds to changes in temperature

Where are mechanoreceptors found?

The ear and skin

Where are photoreceptors located?

The retina

Where are chemoreceptors found?

The tongue, nose and blood vessels.

Where are thermoreceptors located?

The skin

What is the Control centre?

The control centre, part of the central nervous system, processes the nerve impulse from the receptor, decides on a response, and sends a message to the effector.

What is the CNS composed of?

The spinal cord and brain

What is the effector?

A muscle, or gland that receives the message from the central nervous system to respond in a particular way.

What is the stimulus response model composed of?

Stimulus-Receptor-Control Centre-Effector-Response

Example: It's a extremely hot day and you walk outside. (Provide stimulus response model)

- Stimulus : Hot weather

- Receptor : Thermoreceptor

- Control Centre : CNS

- Receptor : Arm muscles and sweat glands

- Response : You take of your jacket and sweat

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