AMY-2A Lecture Notes - Lecture 17: Blood Sugar, Muscular System, Homeostasis
Document Summary
Physiology- the study of how organisms separate self and non-self , move, respond, to internal and external changes, digest, metabolize, and execrate materials, reproduce and grow. This is achieved by maintaining a proper balance both internally and with the outside world. Homeostasis- maintaining the right amounts of everything, creating a balance. Dynamic process, changing but relatively constant within limits. Concerns all factors relating to well being of organism. Regards maintaining internal environment of body due to internal and external changes: homeostasis refers to especially maintaining the proper conditions for, oxygen and carbon dioxide levels, levels of nutrients in blood (ex. Glucose: electrolytes/ salt balance and osmotic pressure (fluid levels, acid-base balance (ph, temperature, pressure of body cavities (especially lungs) Examples of homeostatic mechanisms: proper nutrient levels in the blood ex. Insulin/glucagon- blood glucose levels: proper heart rate and blood pressure ex. Adrenaline- response to stimuli: removing wastes from the blood ex.
