| A | B |
| BLOOD | a connective tissue made up of two types of cells, cell parts, and plasma |
| ARTERIES | blood vessels that direct blood AWAY from the heart |
| CAPILLARIES | the smallest blood vessels (only one cell thick!) |
| VEINS | carry blood BACK TO the heart |
| CARDIOVASCULAR SYSTEM | transports materials to and from your cells |
| PULMONARY CIRCULATION | the path of blood between the heart and lungs |
| SYSTEMIC CIRCULATION | the path of blood between the heart and the brain and the rest of the body |
| BLOOD PRESSURE | the force exerted by the blood on the inside walls of the blood vessels |
| PATHOGENS | microscopic particles that make one sick |
| ANTIBODIES | chemicals released by white blood cells that help destroy pathogens |
| PLASMA | the fluid part of the blood |
| WHITE BLOOD CELLS | leukocytes |
| RED BLOOD CELLS | erythrocytes |
| HEMOGLOBIN | a protein which gives red blood cells their color and their ability to transport oxygen |
| PLATELETS | pieces of larger cells found in bone marrow and assist the blood in clotting |
| FIBRIN | threadlike fibers that form a sticky net helping blood to clot |
| RIGHT ATRIUM | receives oxygen-poor blood from the body |
| RIGHT VENTRICLE | contracts pushing blood from the heart to the lungs |
| LEFT ATRIUM | receives oxygen-rich blood from the lungs |
| LEFT VENTRICLE | contracts pushing blood from the heart to the brain and the rest of the body |
| SUPERIOR VENA CAVA | vein that brings oxygen-poor blood from the brain and upper part of the body back to the heart |
| INFERIOR VENA CAVA | vein that brings oxygen-poor blood from the lower part of the body back to the heart |
| PULMONARY ARTERY | blood vessel that directs oxygen-poor blood from the heart to the lungs |
| PULMONARY VEIN | blood vessel that directs oxygen-rich blood from the lungs to the heart |
| AORTA | blood vessel that directs oxygen-rich blood from the heart to the brain and the rest of the body |
| UNIVERSAL DONOR | type O - has NO antigens |
| UNIVERSAL RECIPIENT | type AB - does not make any antibodies |
| HYPERTENSION | abnormally high blood pressure |
| ARTERIOSCLEROSIS | a cariodvascular disease in which fatty materials build up on the walls of arteries |
| ATHROSCLEROSIS | a cariodvascular disease in which fatty materials build up on the walls of other blood vessels |