HHP 1300 Lecture Notes - Lecture 1: Connective Tissue, Adipose Tissue, Nervous Tissue

• School: University of Iowa
• Department: Health and Human Physiology
• Course: HHP 1300
• Professor: Flanagan

Document Summary

Dynamic not rigid, meaning it is stable but it changes with the environment. 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 heater blasts heat. Types of feedback: feedback- control center sends signals to effectors, making fine adjustments to stay in homeostasis, negative feedback loop- change in a condition leads to a response which counteracts that change, most common type of physiological response. Regulation around a setpoint: positive feedback loop- change in a condition leads to a response which amplifies that change. Change keeps going: childbirth contractions get stronger and stronger to push the baby out. Gets worse and worse before it gets better: subsequent output from the effector is increased as condition is pushed further away from the set point. Intrinsically: cells within the organ sense a change and signal to neighboring cells to respond appropriately.