Principles of homeostasis


Homeostasis-the regulation of the internal environment of a cell or organism to maintain optimum levels in response to internal and external changes.

Automatic control systems consist of the:


-The Coordination Centre

-The effectors

Image result for the cns system

My notes:

Stimulus-change in the environment

Effector=muscles or glands that bring about change in response to the the stimuli.

The Coordination Centre-Sends electrical impulses to the other organs and coordinates the


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