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Understanding Negative Feedback in Thermoregulation

Learn how the body's temperature regulation system works through negative feedback mechanisms, involving receptors, control centers, and effectors to maintain homeostasis.

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Understanding Negative Feedback in Thermoregulation

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  1. Slide 1 SE 1-4 Negative Feedback in Thermoregulation Information affects Information affects RECEPTOR RECEPTOR Body’s temperature sensors Body’s temperature sensors CONTROL CENTER STIMULUS STIMULUS Body temperature falls below 37.2°C (99°F) Body temperature rises above 37.2°C (99°F) Control mechanism when body temperature rises Control mechanism when body temperature falls RESPONSE RESPONSE Decreased blood flow to skin Decreased sweating Shivering Stimulus removed Homeostasis restored Increased blood flow to skin Increased sweating Stimulus removed Homeostasis restored Thermoregulatory center in brain EFFECTOR EFFECTOR Negative feedback Sends commands to Sends commands to Blood vessels and sweat glands in skin Blood vessels and sweat glands in skin Skeletal muscles Negative feedback

  2. Slide 2 CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature rises above 37.2°C (99°F) Control mechanism when body temperature rises Thermoregulatory center in brain

  3. Slide 3 Information affects RECEPTOR Body’s temperature sensors CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature rises above 37.2°C (99°F) Control mechanism when body temperature rises Thermoregulatory center in brain

  4. Slide 4 Information affects RECEPTOR Body’s temperature sensors CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature rises above 37.2°C (99°F) Control mechanism when body temperature rises Thermoregulatory center in brain EFFECTOR Sends commands to Blood vessels and sweat glands in skin

  5. Slide 5 Information affects RECEPTOR Body’s temperature sensors CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature rises above 37.2°C (99°F) Control mechanism when body temperature rises RESPONSE Increased blood flow to skin Increased sweating Stimulus removed Homeostasis restored Thermoregulatory center in brain EFFECTOR Negative feedback Sends commands to Blood vessels and sweat glands in skin

  6. Slide 6 CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature falls below 37.2°C (99°F) Control mechanism when body temperature falls Thermoregulatory center in brain

  7. Slide 7 Information affects RECEPTOR Body’s temperature sensors CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature falls below 37.2°C (99°F) Control mechanism when body temperature falls Thermoregulatory center in brain

  8. Slide 8 Information affects RECEPTOR Body’s temperature sensors CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature falls below 37.2°C (99°F) Control mechanism when body temperature falls Thermoregulatory center in brain EFFECTOR Blood vessels and sweat glands in skin Skeletal muscles Sends commands to

  9. Slide 9 Information affects RECEPTOR Body’s temperature sensors CONTROL CENTER SE 1-4 Negative Feedback in Thermoregulation STIMULUS Body temperature falls below 37.2°C (99°F) Control mechanism when body temperature falls RESPONSE Decreased blood flow to skin Decreased sweating Shivering Stimulus removed Homeostasis restored Thermoregulatory center in brain EFFECTOR Blood vessels and sweat glands in skin Skeletal muscles Sends commands to Negative feedback

  10. Slide 10 SE 1-4 Negative Feedback in Thermoregulation Information affects Information affects RECEPTOR RECEPTOR Body’s temperature sensors Body’s temperature sensors CONTROL CENTER STIMULUS STIMULUS Body temperature falls below 37.2°C (99°F) Body temperature rises above 37.2°C (99°F) Control mechanism when body temperature rises Control mechanism when body temperature falls RESPONSE RESPONSE Decreased blood flow to skin Decreased sweating Shivering Stimulus removed Homeostasis restored Increased blood flow to skin Increased sweating Stimulus removed Homeostasis restored Thermoregulatory center in brain EFFECTOR EFFECTOR Negative feedback Sends commands to Sends commands to Blood vessels and sweat glands in skin Blood vessels and sweat glands in skin Skeletal muscles Negative feedback

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