3
orifice of inferior vena cava
orifice of superior venca cava
opening of coronary sinus
They are the right ventricle, left ventricle, right atrium, and left atrium. For more details you can take a look here: http://heartdisease.about.com/cs/starthere/a/chambersvalves.htm http://www.revolutionhealth.com/articles/chambers-of-the-heart/tp10241
The blood flows from the atrium through the tricuspid valve to the right ventricle. The tricuspid valve prevents backflow of blood from the right ventricle back into the right atrium when the ventricle contracts.
The SA (sinoatrial) node is a cluster of cells in the upper part of the right atrium (aka the right upper chamber of the heart).
right atrium
The valve that prevents the backflow of blood from the right ventricle into the right atrium is called the tricuspid valve.
Four, the left atrium, right atrium, left ventricle, right ventricle.
right atrium
The lower (ventricles) are muscular and the valves can seal both openings. The upper (atria) are significantly weaker and are not sealed at the venous portal. Both left sides are thicker and stronger than the right (systemic pressure is much higher than pulmonary).
The human heart has four main openings, corresponding to its four chambers: two atria (the right and left atrium) and two ventricles (the right and left ventricle). Additionally, there are major blood vessel openings associated with the heart, including the openings for the superior and inferior vena cavae, pulmonary veins, and the aorta. These vessels facilitate blood flow into and out of the heart, but when referring specifically to the chambers, there are four main openings.
there are 4 part to a heart left atrium, left ventricle, right atrium, right ventricle
the size of the right atrium is smaller that the left atrium.
The cranial and caudal vena cava open in the right atrium.
The heart has four chambers: the left ventricle, the left atrium, the right ventricle, and the right atrium.
Yes, both the superior and inferior vena cava carry deoxygenated (oxygen-poor) blood and deposit it into the right atrium of the heart.
four chambers: right atrium left atrium right ventricle left ventricle
right atrium
Right Atrium, left atrium. Right ventricle, left ventricle. 4 main blocks. There many parts(:-:)