Mind map

Homeostasis

Cushla Whetton Biology English

Mind map: homeostasis

Map content

Homeostasis

+ Positive Feedback
- Enhance stimulus
- E.g. Child birth & blood clotting
- Negative Feedback
- Reverse stimulus
- E.g. Maintaining body temp & blood glucose levels
Stimulus
- Receptor
  - Control centre
    - Effector
      - Physiological response
        Evaporation of sweat, body temp falls, stimulus ends
      - Responds to change
        E.g. Sweat glands activated
    - Efferent pathway
      - Info sent from control centre to effector
    - Measures change against set point
      - E.g. Thermoregulatory centre in brain
  - Afferent pathway
    - Info sent from receptor to control centre
  - Detects change
  - E.g. Temp-sensitive cells in skin & brain
- Produces change
- E.g. Body temp rises
Maintain balance
- Optimal functioning
  - Internal environment

Description: Term used to describe the constant function of keeping an optimal internal environment within the body.
Created by: Cushla Whetton
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