2.82: Understand that a Coordinated Response Requires a Stimulus, a Receptor and an Effector

COORDINATED RESPONSE: Process in which a reaction is carried out in response to a change in environment (stimuli)

Diagram:

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Diagram showing the Process of a Coordinated Response

DEFINITIONS:

FACTOR	EXPLANATION
STIMULI	Change in environment
RECEPTOR	Specialised cells that detects change in environment E.g, Sensory Neurones in Finger detect heat
EFFECTOR	Part of body that carries out response E.g, Muscles in Finger that contract to pull Finger away from heat