Heart Disorders
blood flow decreases or stops in the coronary artery of the heart, causing damage to the heart muscle
Myocardiac infarction
(Heart Attack)
receive blood from venules, and carry it back to the atria of the heart.
veins
separates left and right ventricles
interventricular septum
separates left atrium from left ventricle
mitral (bicuspid) valve
Abnormally slow heartbeat, < 60 beats/min at rest.
Bradycardia
hardened arteries
atherosclerosis
sites of exchange of substances between the blood and the body cells. Smallest
diameter blood vessels
capillaries
thin-walled upper chambers; recieve blood returning to heart
atria
Receives blood from the pulmonary veins; pumps blood to left ventricle.
left atrium
Abnormal heart sound derived from incomplete closure of cusps of a valve.
Murmur
A condition characterized by abnormal heart rhythm. This may result in either too fast or slow heart beat.
Arrythmia
Inflammation of a vein; common disorder
phlebitis
separates right atrium from right ventricle
tricuspid valve
Receives blood from the right atrium; pumps blood to lungs.
right ventricle
Device used to treat disorders of cardiac conduction system; implantable and battery-powered.
Artificial Pacemaker
High pressure in the arteries; Symptoms varies from person to person and generally include unexplained fatigue and headache.
Hypertension
Abnormal and irregular dilations in superficial veins; most common in legs.
varicose veins
thick-walled lower chambers; pump blood into arteries
ventricles
Receives blood returning from systemic circuit (from the superior and inferior vena cavae and coronary sinus); pumps blood to right ventricle.
right atrium
A recording device of electrical changes that occur in the myocardium during the cardiac cycle.
Electrocardiogram (ECG, EKG)
Disease involving deposition of cholesterol
plaque on inner walls of coronary arteries
Coronary artery disease (CAD)
A bulge in the wall of an artery, formed when blood pressure dilates a weakened area of the vessel; can burst wall of artery.
aneurysm
fibrous strings that attach cusps of tricuspid and mitral valves to papillary muscles in wall of heart
Chordae tendineae
Receives blood from the left atrium; pumps blood to systemic circuit.
left ventricle
Rapid, regular contraction of a heart chamber, 250-350 beats/min.
Flutter