Medical Biology Exam with Correct Answers

Homeostasis with examples - Answer-The maintenance of a constant, stable internal environment. If disturbed it can cause disease or can be the result of disease. Ex: control of body temperature, blood pressure, body pH, levels of glucose and metabolites in blood. - Answer- How does homeostasis work? - Answer-A control system keeps a physiological variable within normal limits. e.g. the brain controls blood pressure. approach to scientifically understanding the disease? - Answer-understand the normal physiological control systems involved. understand how they are disturbed in disease, develop therapies, drug therapies, drug treatments or intervention with allow the recovery of normal homeostasis, as much as possible (pharmacology, genetics and molecular biology, medicine and surgery) sensor and example - Answer-measure a variable, measure blood pressure control and example - Answer-compares the measured value of the variable to the desired value, and reacts to any discrepancy. The brain compares the normal to what was measured for blood pressure effector and example - Answer-changes the variable. The capillaries constrict/loosen to adjust to desired range or set point.