BIO202 Final Exam Study Guide (StraighterLine A&P II)

BIO202 Final Exam Study Guide (StraighterLine A&P II) Viscosity of Blood? - Correct Answer-twice as thick as water How long does it take for a drop of blood to circulate through the entire system? - Correct Answer-20-60 seconds What is the composition of Blood - Correct Answer-55% plasma, 45% formed elements, What are the fucntions of blood? - Correct Answer--Moves regulatory and processed molecules, gasses, waste, and nutrients -Regulats pH and osmosis process -Maintain body temperature -Protect against foreign substances -Assist in clotting What is the composition of plasma? - Correct Answer-91% water 7% proteins 2% other solutes What proteins are found in blood plasma? - Correct Answer-albumin, globulins, fibrinogen What solutes are found in blood plasma? - Correct Answer-Ions, nutrients, waste products, gasses, regulatory substances What are two blood disorders - Correct Answer-Anemia and sickle-cell disease What is sickle-cell disease? - Correct Answer-an abnormal red blood cell that has a crescent shape and an abnormal form of hemoglobin What is anemia? - Correct Answer-a decrease in the oxygen-carrying ability of the blood How much blood does the heart pump per minute? - Correct Answer-~5 1/4 Quarts per minute What are action potentials? - Correct Answer-Sequence of electrical changes when a nerve membrane receives a stimulus that exceeds a threshold What is depolarization? - Correct Answer-Loss of an electrical charge on the surface of a membrane What is Repolarization? - Correct Answer-Gain of electrical charge on the surface of a membrane What are the functions of the heart? - Correct Answer-generating blood pressure, routing blood, ensuring one-way blood flow, regulating blood supply What are the two divisions of the heart? - Correct Answer-Pulmonary Circuit and Systemic Circuit What are the components of the heart? - Correct Answer-Pericardium, Heart Wall, Chambers, Valves What is the pericardium? - Correct Answer-Double-walled sac that surrounds the heart and reduces friction between pericardial membranes What is the heart wall? - Correct Answer-Three protective layers of tissue What to chambers of the heart do? - Correct Answer-Receive and return blood from and to the body What is the purpose of heart valves? - Correct Answer-prevent back flow of blood, ensure one- directional What are the four valves of the heart? - Correct Answer-The tricuspid and pulmonary valves on the right side, and the mitral and aortic valves