Cardiovascular System Flashcards
Artioventric bundle
Aka bundle of his
Sinoatrial Node
Pace maker of the heart ;A Node
Pulmonary circulation
Deoxygenated blood is pumped from the right side of the heart to the lungs. Gas is a exchanged, and oxygenated blood returns to the heart.
Systemic Circulation
Oxygenated blood is pumped from the left side of the heart and moves through the body
Hepatic portal Curculation
Veins from the spleen, gallbladder pancreas, stomach, and intestines dump blood from the hepatic portal vein which takes blood to the liver.
Septum
Thick, muscular wall that divides the heart into left and right halves
Lower chambers of the heart
Ventricles
Polarized State
Before the Impulse hits the cells, they are in a polarized stat think of this as the waiting stage
Atrial Flutter
Rapid regular Rhythm
Fetal Circulation
The arteries carry fetal blood to the placenta
Stroke volume
Is the amount of blood that is pushed out of the left ventricle compared with the total volume of blood that filled the ventricle
Systole
Occurs when the heart is contracting
Tachycardia
A pulse that is greater than 100 bpm
Cardiogenic
Inability of the damaged heart to pump blood affectively caused by a heart attack, arrhythmias, pulmonary embolism, or congestive heart failure
Vena Cava
Superior and the inferior vena cava, bring deoxygenated blood from the body to the right heart.
Bundle of his
AV Bundle impulse leaves, the AV node it moves to the bundle of His
Purkinje fibers
Transmit the impulse quickly, and effectively to the ventricular myocardial cells this cause ventricular chambers to contract
Pericardium
Covers the heart like a sac
Thrombophlebitis
Occurs when a thrombus forms in a vein deep in the body, (blood clot)
Cardiac catheterization
Catheter into the heart under fluoroscopic guidance to collect diagnostic information about structures in the heart, coronary arteries and great vessels
Lub
Occurs when the AV closes and the ventricles contract
Stenosis
Occurs when the heart valve flaps are stiff or fused together, thus narrowing the valve
Mitral Regurgitation
Mitral valve prolapse
Occurs when one or both cusps of the mitral valve protrude back into the left atrium during ventricular systole
Atheroma (aneurysm)
Bulging in the artery wall that can burst causing bleeding, and possible death of the blood vessel.
Cardiomegaly
Enlarged heart
Semilunar valves
SL valves are found between the ventricles and after leading out of the heart
Atheroma
Mass of fat on the walls of the artery