[PNB 2264] - Final Exam Guide - Comprehensive Notes fot the exam (105 pages long!)

• School: UConn
• Department: Physiology and Neurobiology
• Course: PNB 2264
• Professor: Kristen Kimball

Document Summary

Function ex: muscle contraction, how do we do electrical impulse. Ex: different bird feet is adapted to different functions. Structure/functions relationship: structure is adapted to function. Atoms make molecules molecules make up cells cells make up tissues tissues make up organs individual organs make up organ systems -->systems make organisms populations ecosystems. Not an equilibrium - rather a dynamic steady state (dynamic constancy) Need energy input in order to maintain homeostasis so not equilibrium. Within narrow limits - small fluctuations around the set point . Set point - body isn"t always at this it just fluctuates around it. Some variables in the body can regulate around large limits as well. Extracellular fluid (aka outside the cells) *imp for homeostasis. Decrease in body temp shiver (which increases body temp) Stimulus response (the response removed the feedback) Closed loop because response affected stimulus (feedback) This reflex response to change in body temp functions as a negative feedback control system.