A&P Exam 2 Jersey College Questions and Answers

The longest vein in the body that's located in the lower extremities - Saphenous All arteries directly or indirectly emerge from which large artery? - aorta This artery carries unoxygenated blood. - pulmonary Flow of blood: ascending aorta, aorta arch, descending aorta, - Common iliac artery The blood component with the highest density - Red blood cells White blood cells that helps protect the body from parasites - Eosinophils What must be present in order to form thrombin - Calcium In the final step in the blood-clotting process - Thrombin reacts with fibrinogen to form fibrin The blood type that has antigen A on the cell and anti-B antibody in the plasma - Type A The blood type with no antigens on the blood cell and both Anti-A and Anti-B antibodies in the plasma - Type O The universal recipient blood type - Type AB Another term for white blood cells - leukocytes Another term for platelets - thrombocytesWhere is the heart located? - Mostly to the left of the midline of the sternum What are the upper chambers of the heart called? - atria (atrium) the receiving chambers The innermost layer of the heart - endocardium Heart valves on right side of the heart - Tricuspid and pulmonary semilunar valves What is the first heart sound? - closing of AV valves What does the superior vena cava carry? - Oxygen poor blood to the right atrium When the left ventricle contracts, it pushes blood through a valve to the - aorta How is the heart supplied with blood? - Arteries that branch directly from the aorta The volume of blood ejected from the ventricles during each beat - Stroke volume The hearts pacemaker - sinoatrial node The correct sequence for the conducting system - sinoatrial node, AV node, AV bundle, Purkinje fibers In a normal ECG tracing the T wave represents what? - Repolarization of the ventricles liquid portion of blood - plasmaLayer of the heart that allows it to act as a pump - Myocardium Hardest working cardiac chamber with the thickest myocardium - Left ventricle Plasma - Contains digested food, metabolic waste products, and proteins 5,000,000 - Approximately the number of red blood cells in a cubic millimeter of blood 7,500 - Approximately the number of white blood cells in a cubic millimeter of blood red blood cells - Have no nucleus Vessels that carry blood from the pulmonary capillaries to the left atrium - Pulmonary veins The right ventricle pumps blood to - The pulmonary artery What valve is located between the right atrium and right ventricle? - tricuspid valve