HHP 1300- Midterm Exam Guide - Comprehensive Notes for the exam ( 45 pages long!)

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Physiological regulation: how do we physiological systems act to maintain homeostasis, pathways, sensor- detects deviations in a condition away from a specified level (set point) Integrating center- controls the activity of the effectors based on input from the sensor: regulate around a setpoint, effector- makes appropriate adjustments to counter the change, many times operates by feedback loop. Regulation around a setpoint: positive feedback loop- change in a condition leads to a response which amplifies that change, subsequent output from the effector is increased as condition is pushed further away from the set point. Antagonistic effectors: homeostasis is often maintained by opposing effectors that move conditions in opposite directions, maintains variables within a certain normal range, or dynamic constancy, when you are hot, you sweat; when you are cold, you shiver. Intrinsically: cells within the organ sense a change and signal to neighboring cells to respond appropriately: extrinsically: outside or organ, endocrine, nervous system.

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