Homeostasis & Body Systems

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Homeostasis & Body Systems. The Balance of Life. Homeostasis. The body’s ability to maintain stable internal conditions even though the outside world changes constantly. Examples: Temperature Blood sugar pH Nutrients Waste. Negative Feedback. - PowerPoint PPT Presentation

Transcript of Homeostasis & Body Systems

HOMEOSTASIS & BODY SYSTEMSThe Balance of Life

Homeostasis

The body’s ability to maintain stable internal conditions even though the outside world changes constantly. Examples: Temperature Blood sugar pH Nutrients Waste

Negative Feedback

The variable triggers an opposite response to return the body to normal.

Negative Feedback

Negative feedback loops are self-terminating. Why?

Nearly all feedback in the body is negative. Why do you think that is?

Positive Feedback

Stimulus causes a response that increases the stimulus.

When does positive feedback end?

Body Systems