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 |