Homeostasis is the regulation of the internal conditions of a cell or organism to maintain optimum conditions for function in response to external and internal changes.
Homeostasis maintains..?
Optimal conditions for enzyme action and all cell functions.
What are three things controlled by homeostasis?
Blood glucose concentration, body temperature and water levels.
Automatic control systems may involve what?
Nervous or chemical responses.
All control systems include:
Cells called receptors, which detect stimuli (environmental changes)
Coordination centres (such as the brain, spinal cord and pancreas)
Effectors, muscles or glands, which bring about responses which restore optimum levels
