Exam 1 Review

Exam 1 Review Human Anatomy and Physiology Anatomy= Structure Physiology= Function Common Themes 1. Form reflects function= (what you do, workout-big muscles) 2. Interdependence(TEAMWORK)= systems always working together 3. Homeostasis or bust= maintenance of relatively stable internal conditions despite changing out environment 4. Connective tissue is everywhere Body is very COMPLEX  separated into different levels Diversity (legos) MORE Diversity (different sculptures) Necessary life functions 1. Maintaining Boundaries 2. Movement 3. Responsiveness 4. Digestion 5. Metabolism- building  , breaking  6. Excretion 7. Reproduction 8. Growth Survival Needs 1. Nutrients 2. Oxygen 3. Water 4. Normal body temperature 5. Appropriate atmospheric pressure Life functions + Survival needs  Kept in check by homeostasis Homeostasis  maintains optimal range  ALL organ systems play a role in homeostasis  Uses negative feedback (COUNTERACTS stimulus)(diagram from PP)  cruise control  thermostat (diagram from PP)  negative in this case means opposite  an ACTIVE process  NOT STATIC  A state of dynamic equilibrium  very complex  ex. body temp, pH, glucose concentration, water, ions, oxygen, sleep  also some positive feedback (AMPLIFIES stimulus)  childbirth  blood clotting Homeostatic imbalances:  diabetes  dehydration  stroke  cancer  disease- disruptions or imbalances that can’t be corrected