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Homeostasis definition
The regulation of internal conditions of a cell or organism to maintain optimal function in response to changes
Functions regulated by homeostasis
Blood glucose concentration, body temperature, water levels, enzyme action
Involuntary control of homeostasis
Controlled by the brain stem and spinal cord without conscious effort
Automatic control systems
May involve nervous responses or chemical responses
Components of control systems
Receptors, coordination centres (brain/spinal cord), effectors (muscles/glands)