homeostasis
- Created by: millie walk
- Created on: 08-03-20 12:51
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- principles of homeostasis
- homeostasis is the process by which your body maintains a constant internal environment
- it is important to maintain optimal conditions for enzyme action and all cell functions
- homeostasis relies on automatic control systems such as your nervous system, hormones & body organs
- water content
- water leaves the body all the time as you breathe out & sweat
- excess water is removed in the urine by the kidneys
- water leaves the body all the time as you breathe out & sweat
- body temperature
- your body must keep the core temperature constant so that your enzymes will work properly
- blood glucose concentration
- glucose is the eergy source for cells
- levels of glucose in your blood is controlled by the pancreas
- glucose is the eergy source for cells
- water content
- features of control systems
- receptors detect stimuli in the external or internal environment
- receptor cells may be a part of the nervous or hormonal control system
- coordination centres (brain, spinal chord, organs eg: pancreas)
- effectors - usually muscles or glands that bring about a response to the stimulus
- receptors detect stimuli in the external or internal environment
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