Heart Anatomy

Right Atrium

It receives deoxygenated blood from the body, pumps it into the right ventricle, and sends to lung for oxygen.

Left Atrium

It receives oxygenated blood from the lungs

Right ventricle

Pumps deoxygenated blood to the lungs

Left Ventricle

Pumps oxygenated blood to the cells of the body

Visceral pericardium

Innermost layer of pericardium, prevents friction

Parietal Pericardium

outer layer of pericardium that prevents friction

Atrial Auricles 

Increases the volume of the hearts chambers and assists in the storage of blood 

Coronary Sulcus 

groove that seperates the atria from the ventricle on the hearts surface that holds the blood vessel of the coronary circulation 

Anterior interventriuclar sulcus

has a branch of coronary artery that supplies blood to the left section of the heart 

Posterior interventricular sulcus

runs the posterior artery and middle cardiac vein

Interatrial septum

thick wall of tissue that seperates the left and right atria of the heart 

Interventricular septum

thick wall of tissue that separates the L&R ventricles of the heart 

Aorta

carry highly oxygenated blood from the left ventricle to the rest of the blood 

Superior Vena Cava

Return deoxygenated blood from the upper half of the body to the right atrium

Inferior vena cava

Returns deoxygenated blood from the lower half of the body to the right atrium

Right Atrioventricular/tricuspid valve

prevents blood from being pumped back to the right atrium

Left atrioventricular/bicuspid/mitral valve

prevents blood from being pumped back up the left atrium

Chordae Tendineae

small fibers that connect the mitral and tricuspid valve to the papillary muscle 

Papillary muscle

small muscles within the heart that hel conrol the opening and closing of the mitral tricuspid valve

Pulomonary valve (semilunar)

valve that controle the blood between the aorta and left ventricle 

Pulmonary trunk

takes deoxygenated blood to the lungs

R and L pulmonary arteries

carry deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation 

R and L pulmonary veins

Transports oxygenated blood from the lungs to the left atrium

Aortic (semilunar) valve

prevents blood flowing into the left ventricle