5.1 Homeostasis Flashcards
1
Q
what is homeostasis?
A
homeostasis is the maintenance of a constant internal environment in order to maintain optimum conditions for ezyme and cellular function.
2
Q
give examples of conditions maintained by homeostasis in the body
A
- blood glucose concentration
- body temperature
- water levels
3
Q
what two types of responses are used in body control systems?
A
nervous and chemical
4
Q
what three components do all control systems have?
A
- receptors
- coordination centres
- effectors
5
Q
what is the function of a receptor?
A
receptors detect changes in the environment (stimuli).
6
Q
what is the function of a coordination centre?
A
coordination centres obtain and process information from receptors.
7
Q
what is the function of an effector?
A
effectors (muscles or glands) bring about responses to stimuli.
