System Flashcards
Pulmonary circulation
Deoxygenated blood is pumped from the right side of the heart to lungs
Systemic circulation
Starts with blood being pumped out of left side of the heart
Visceral pericardium
Also called epicardium
Atrium
An upper chamber of the heart
Ventricle
Lower chamber of the heart
Coronary arteries
Vessels supplying blood to the muscle of the heart
Pulmonary arteries
Carry deoxygenated blood to the lungs
Pulmonary veins
Are only veins that carry oxygenated blood
Tricuspid valve
Between the right atrium and right ventricle
Bicuspid or mitral valve
Between left atrium and left ventricle
Endocardium
Inner lining of heart
Sinoatrial nod
Pacemaker of the heart
Bundle of his
Equals or same as atrioventricular bundle
Semilunar valve or valves
Are located between ventricles and arteries leaving the heart
Cardiomegaly
Enlargement of heart muscle
Atheroma
Mass of fat or lipids on a artery wall
Aneurysm
Localized dilation or bulging of an artery caused by congenital or acquired weakness in a vessel wall
Arteriosclerosis
Disease of arterial walls where they become thickened and lose elasticity
Thrombophlebitis
Blood clot forms in a deep vein in the body
Catheterization
Thin tube is threaded into the heart to get diagnostic info about cardiac structures, coronary arteries and great vessels
AV valves closing causes
Lub sound of the heart beat
Stenosis
Narrowing of valves caused by stiff or fused together flaps
Mitral regurgitation
Back flow from left ventricle to atrium
Pericardium
Sack like membrane surrounding heart
Mitral valve prolapse
Is protrusion of one or more both cusps into the left atrium during ventricular systole
Bundle of his picks
Impulse from the av nod
Purkinje fibers
Translate electrical impulse to ventricular myocardial cells causing them to contract
Pulmonary artery
Blood vessel branches from right side of heart Carrie’s deoxygenated blood to lungs
Vena cava
Blood vessel Carries deoxygenated blood to heart
Cardiogenic shock
Heart muscle is damaged and can’t pump blood effectively to the body
Tachycardia
Abnormally rapid heart beat more than 100 beats per minute
Systole
Contracted phase of heartbeat
Stroke volume
Amount of blood pushed out of ventricles compared with total volume of blood that filled ventricles
Fetal circulation
Includes placenta
Atrial flutter
Rapid regular atrial rhyme
Septum
Thick muscular wall divides heart into left and right
Lower chambers of heart
Are larger with thick muscular walls, helps pump blood to body and lungs
Polarized state
Resting or waiting stage that cardiac cells are in before electric impulse hits
Hepatic portal circulation
Allows blood from spleen, gallbladder, pancreas, stomach and intestines to go directly to liver where it is filtered
