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Maintaining Homeostasis: Internal Environment Control in Human Body

Understand the mechanisms of homeostasis in the human body, from molecular to systemic levels, and how heat regulation is achieved through various methods of gain and loss. Explore cooling and warming processes for temperature balance.

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Maintaining Homeostasis: Internal Environment Control in Human Body

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Presentation Transcript

  1. Homeostasis Maintenance of a stable internal environment.

  2. Levels of Organization in the Body • Molecular • Cellular • Tissues • Organs • Systems

  3. Methods of Gaining Heat • Metabolism • Environmental changes

  4. Methods of Losing Heat • Evaporation - converts liquid water to vapor • Conduction - direct contact between objects • Convection - conduction where one object is in motion • Radiation - loss of heat to environment due to a temperature gradient

  5. Methods for Body Cooling • Sweating • Dermal blood vessel dilation

  6. Methods for Body Warming • Shivering • Dermal blood vessel constriction

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