Blood Flow
the muscular pump that generates the force required to move blood through the blood vessels
What is the heart?
circuit that brings oxygen-poor blood to the lungs
What is the pulmonary circuit?
prevent the backflow of blood in the heart's chambers
What are valves?
scientific term for white blood cells
What are leukocytes?
scientific term for blood clotting
What is coagulation?
the valve that separates the right ventricle and the pulmonary trunk
What is the pulmonic valve?
chamber that contracts to send blood through the aortic valve
What is the left ventricle?
the largest artery in the body
What is the aorta?
helps control blood loss from broken vessels
What are platelets?
the stoppage of bleeding
What is hemostasis?
chambers that contain oxygen-rich blood
What are the left atrium and left ventricle?
starting point for electrical impulses in the heart
What is the sinoatrial (SA) node?
small branch of an artery that communicates with the capillaries
What are arterioles?
when a person has an increased amount of white blood cells in the body
What is leukocytosis?
the universal blood donor
What is type O- blood?
three vessels that bring blood back to the heart
What are the superior vena cava, inferior vena cava, and coronary sinus?
major vein that brings blood back from the upper body
What is the superior vena cava?
contains a small amount of fluid to reduce friction on heart
What is the pericardial cavity?
the first type of white blood cell to arrive at an infection site
What are neutrophils?
a blood clot abnormally forming in a vessel
What is a thrombus?
part of the cardiac conduction system that has a slow impulse to allow the atria to fully contract and relax
What is the atrioventricular (AV) node?
recording of the electrical activity associated with the cardiac cycle
What is an electrocardiogram?
approximately where the base of the heart is located in the thoracic cage
What is the 2nd rib?
What is pregnancy?
the highest arterial blood pressure during the cardiac cycle; occurs during systole