BIOL 141- Final Exam Guide - Comprehensive Notes for the exam ( 178 pages long!)
Document Summary
Homeostasis: definition, the body"s ability to maintain a constant environment, the body is constantly bombarded by, change from the environment. Internal reactions: but, can maintain certain set point ranges. In balance: do not change, homeostasis regulates, body temperature. Negative feedback loops: generic physiological example, physiological factor with set point, receptors sense change, brain integrates information, decides how to respond, a system responds, negates factor, homeostasis is restored. Homeostasis: any process that actively maintains a fairly stable environment. Negative feedback loops: resist change, maintain homeostasis. Organism in homeostasis: external change/internal change, internal change results in loss of homeostasis, organism attempts to compensate, compensation fails. Negative feedback loops (help maintain homeostasis: stimulus, when there is a change in, blood pressure, temperature, temperature, other parameter, sensor, measures and transmits the change to the integrating center. Integrating center (ic: makes decision on what to do about the information that is transmitted by the sensor. If it is okay, change nothing: target (sometimes called effector)
