Chambers of the heart
right atrium, left atrium, left atrium, left ventricle
where blood is carried away from the heart
how blood is returned to the heart
pointy bottom of the heart
TOP of the heart
separates the left atrium from the right atrium
separates the left ventricle from the right ventricle
occurs when there's a hole in the diaphragm
organ that seperates the thoracic cavity from the abdominopelvic cavity.
pericardium, visceral pericardium, parietal pericardium
lining the outer cavity
Heart Wall Layers
epicardium, myocardium, endocardium
is the visceral pericardium that covers the outer surface of the heart
muscular wall of the heart, forms both atria and ventricles
inner surfaces of the heart, including those of the heart valves
the expanded extensions of an atrium
divides the atria and ventricle
found in the parietal cavity; secreted by the pericardial membranes. Acts as a lubricant, reducing friction between the opposing surfaces as the heart beats
where pathogens and inflammation can infect the pericardium, the inflammed pericardial rubs against one another, producing a distinctive scratching sound that can be heard through a stethoscope.
interconnect veins and arteries and are called exchange vessles, because their thin walls permit the exchange of nutrients, dissovled gases, and waste products between the blood and surrounding tissues.
bottom chambers of the heart
top chambers of the heart
what vessels are organized into, which transports blood to and from the rest of the body
what vessels are organized into, which carries blood to and from the gas exchange surfaces of the lungs.
valves that permit blood flow in one direction only: the atria to the ventricles
receives blood from the systemic circuit and passes it to the right ventricle
pumps blood into the pulmonary circuit
collects blood from the pulmonary circuit and empties it into the left ventricle
pumps blood into the systemic circuit
regions between the two pleural cavities, also contains the great vessels(the large arteries and veins linked to the heart) thymus, esophagus and trachea.