Physiology 3120 Lecture Notes - Lecture 1: Biophysics, Body Water, Homeostasis

• School: Western University
• Department: Physiology
• Course: Physiology 3120
• Professor: Tom Stavraky

Document Summary

The study of function in the living organism. It embraces biochemistry, biophysics, genetics, pharmacology, anatomy, histology, pathology and behavioral psychology. An understanding of diseases requires and understanding of normal physiology. Its important to maintain this internal environment so the cells can function properly. There are parts of your body that are continuous w the external environment: ex: air in lungs, ex: lumen of digestive tract, ex: parts of urinary system, ex: parts of reproductive system. Internal environment the environment that your cells are surrounded by: does not include your cells it is important to maintain this internal environment so that your cells can function properly. Maintenance of relatively stable conditions in the internal environment. Every system in the body is working to maintain homeostasis, except the reproductive system: you can live without your reproductive system. Both these control systems (nervous and endocrine) work through negative feedback: and sometimes positive feedback.