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Balancing Act- Mechanism of Homeostasis

Discover the intricate mechanism of homeostasis, the body's regulation and maintenance of its internal environment. Learn how different organ systems work together to keep the body functioning optimally within set ranges. Explore feedback loops, including negative and positive feedback, and their role in maintaining equilibrium.

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Balancing Act- Mechanism of Homeostasis

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  1. Homeostasis Balancing Act-Mechanism of Homeostasis Write everything that is underlined

  2. What is Homeostasis ?Homeostasis is the regulation and maintenance of the internal environment of the body

  3. I. Why Homeostasis?Conditions within the body must remain within a narrow range – like your body temperature a. Homeostasis involves keeping the internal environment within set ranges

  4. How does Homeostasis work? b. Organ systems work together to maintain homeostasis so organism can survive and function normally

  5. pore sweat glands hair follicle muscle goose bump c. Control systems help maintain homeostasis. • Receptor : Organs that gather data • control center : receives data/ messages • communicate messages to effector organs • Effector : Organs that respond to change

  6. Holding breath, CO2 levels rise O2 /CO2 level returns to normal Example: ReceptorSenseschange Nervous Respiratory Muscular Control system gets information Effector Responses Control system forces exhale, inhale

  7. II. Feedback Loops Feedback compares current conditions to set ranges. Two types: Negative feedback loops Positive feedback loops

  8. Negative Feedback • Negative feedback stops the change • Example: Maintaining body temp.

  9. platelets blood vessel fibrin clot white blood cell red blood cell • Example: Torn blood vessel stimulates release of clotting factors c. Positive feedback increases change • growth hormones stimulate cell division

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