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HOMEOSTATIC CONTROL system. COMPONENTS t. stimulus → signal received 2. receptor / sensor receives stimulus 3. Integrator→ compares stimulus with set state, deades, transfers to effector MECHANISM stimulus sensor » afferent path effector < efferent integrating center path G response Aquarium example...

HOMEOSTATIC CONTROL system. COMPONENTS t. stimulus → signal received 2. receptor / sensor receives stimulus 3. Integrator→ compares stimulus with set state, deades, transfers to effector MECHANISM stimulus sensor » afferent path effector < efferent integrating center path G response Aquarium example Ostimulus: low temperature receptor: thermometer afferent pathway: pathway to Integrating center 2 4. effector → makes corrective response → readles the solution 2. Acclimitization integrating center: control box 20 °C effector: neater turns on LEVELS OF HOMEOSTATIC CONTROL O intracellular - within the cell Sion concentration Local or Intrinsic Organ or Tissue Reflex control/Extrinsic - Organ system Gwith the help of hormones i-e. Endocrine system releases hormones travel through body. that NEGATIVE FEEDBACK MECHANISM opposes the variable that has been changed Deficiencies 1. Delayed response - stimulus goes through many pathways before it receives a response 2. shutting effector delay Unable to adapt to environment 3. solutions 1 1. Anticipation or feed forward system system occurs in days or months long term a new → organism migration from ↑ temp to temp. Decrease in temp prepares body by increasing body fat. POSITIVE FEED BACK MECHANISM Initial stimulus → response → stimulus ↑ 소 positive Feedback cycle coutside factor is required to shut off feedback cycle initial stimulus → response → stimulus. GINING BIRTH G response loop shuts off TONIC ↓ CONTROL Ⓒ neg cervix stretch stimulater Oxytoan release, causing uterine contractions pushing the baby outside, further stretching cervix ative regulates physiological control in an up or down fashion. The signal is always present but changer sity. in inten- * Decreased signal rate: vessel dilates * Increased signal rate: vessel contracts nc: 5000 S

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