Sling-like structure that supports the heart.
The epicardium is part of this structure.
Delivers oxygenated blood to the myocardium.
Also called the "window maker"
Smooth, shiny, innermost lining of the heart.
Chamber that receives unoxygenated blood from the venae cavae.
Chamber that pumps unoxygenated blood to the lungs through the pulmonary artery.
Term that includes the venae cavae, pulmonary artery, pulmonary veins and aorta.
Primary pumping chambers of the heart.
Chamber that receives oxygenated blood from lungs through four pulmonary veins.
Outernost layer of the heart.
Chamber that pumps oxygenated blood into the systemic circulation.
The myocardium is the thickest in this chamber.
Hardest working chamber.
Death of the heart muscle caused by occlussion of a coronary artery.
Receiving chambers of the heart.
Drains unoxygenated blood from the myocardium.
Chest pain usually caused by impaired flow of blood through the coronary arteries.
Area on the anterior chest that overlies the heart and great vessels.
Layer of the heart that contains the contractile proteins, actin and mysoin.
Upper flat portion of the heart that is located at the level of the second rib.
Collection of fluid or blood in this space causes an external compression of the heart called (cardiac tamponade)
The study of the heart.
Semilunar valve through which blood leaves the right ventricle.
Valve that prevents the backflow of blood from the pulmonary artery.
Exit valve that sees only unoxygenated blood.
Atrioventricular valve on the right side of the heart.
Entrance valve that sees only unoxygenated blood.
Called the Mitral valve.
Entrance valve that sees only oxygenated blood.
Valve that prevents the backflow of blood from the left ventricle.
Atrioventricular valve between the left atrium and the left ventricle.
Leaky valve that allows the backflow of blood.
The first heart sound (lubb)
Heart sound created by the closure of the AV valves to the ventricular walls.
Heart sound created by the closure of the semilunar valves at the beginning of ventricular relaxation.
Exit valve that only sees oxygenated blood.
Valve that prevents the backflow of blood into the left ventricle.
Semilunar valve through which blood leaves the left ventricle.
Tough bands that attach the AV valves to the ventricular walls.
Refers to the narrowing of a valve.
Extra heart sounds (S3,S4) that sound like a racing horse.
Abnormal heart sounds caused by valvular disease.
Life-threatening dysrhythmia that causes the ventricular myocardium to quiver in an uncoordinated and ineffective way.
Place where the electrical signal normally arises.
Heart rate below 60 beats per minute
Bundle of HIS
Specialized conduction tissue in the interventricular septum.
Divided into the right and left branches.
The electrical signal spreads from the conduction tissue in the atria to this structure.
Area outside of the SA node that gives rise to an electrical signal
These fast-conducting fibers spread the electrical signal throughout the ventricular wall.
Record of the electrical activity of the heart (a heart chart).
NORMAL SINUS RHYTHM
Electrical activity appears normal and the signal arises within the SA node.
Heart rate greater then 100 beats per minute.
ECG deflection that indicates atrial depolarization.
Electrical event that stimulates atrial contraction
ECG deflection that indicates ventricular depolarization.
Electrical event that stimulates ventricular myocardial contraction.
ECG deflection that indicates ventricular repolarization.
Lengthening of this time indicates heart block.