A general introduction to physiology and homeostasis. This is the first in a series of Clinical Physiology Lectures. Learning Objectives: • Define Physiology • Describe the organization of the human body • Describe the composition of fluids within the human body: extracellular and intracellular • Compare the regulation of the body by body systems • Compare positive and negative feedback control mechanisms. Reference: Medical Physiology, 13th edition (2016): Guyton & Hall Ch. 1 pg. 3 - 10