| A | B |
| double layered membrane that covers the outside of the heart | pericardium |
| smooth layer of cells that line the inside of the heart | endocardium |
| muscular middle layer of the heart | myocardium |
| period of ventricular contraction is called | systole |
| period of ventricular rest | diastole |
| the smallest blood vessels that connect arterioles to venules & allow oxygen and nutrients to pass thru to body cells | capillaries |
| two blood proteins necessary for the clotting of blood | fibrinogen and prothrombin |
| part of the blood that carries oxygen and carbon dioxide | hemoglobin |
| high blood pressure | hypertension |
| low blood pressure | hypotension |
| a blooming out or sac like formation on the wall of an artery | aneurysm |
| hardening or thickening of the walls of the artery | arteriosclerosis |
| crushing chest pain radiating to the arm, neck, or jaw are signs of a ___ ___ | heart attack |
| chronic inherited anemia that occurs almost exclusively in African Americans | sicle cell anemia |
| abnormal heart rhythms | arrhythmias |
| chamber of the heart that receives oxygenated blood as it returns from the lungs is the | left atrium |
| chamber of the heart that receives deoxygenated blood as it returns from the body is the | right atrium |
| the valve between the right atrium and the right ventricle | tricuspid valve |
| valve between the left atrium and left ventricle is the | bicuspid/ mitral |
| blood vessels that carry blood away from the heart | arteries |
| blood vessels that contain valves that prevent back flow of blood | veins |
| average amount of blood in the human body | 4-6 quarts |
| the largest artery in the body | aorta |
| blood cells that contain hemoglobin | erythrocytes or red blood cells |
| the bright red color of blood indicates lots of | hemoglobin-carrying oxygen |
| blood cells that fight infection | leukocytes |
| inherited disease that occurs almost exclusively in males causing blood being unable to clot | hemophilia |
| leukocytes that provide immunity and protect against cancer | lymphocytes |
| dilated swollen veins that have lost their elasticity | varicose |
| upper chambers of the heart | atrium |
| lower chambers of the heart | ventricles |
| the five parts of the electrical conduction system | SA Node, AV Node, Bundle of HIS, right and left bundle branches, Purkinje Fibers, |
| another name for a heart attack | myocardial infarction |
| foreign substance circulating in the blood stream | embolus |
| condition when the heart does not beat adequately to supply the body needs and causes edema, cyanosis, distended veins | congestive heart failure (CHF) |
| fatty plaques building up on the artery wall causing narrowing of the artery | atherosclerosis |
| removes toxins and defends the body from allergic reactions | eosinophils |
| muscular wall that seperates the heart into right and left sides | Septum |
| cardiovascular system is also known as the | circulatory system |
| valve located between the left ventricle and the aorta | aortic valve |