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The inferior vena cava is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart.It is formed by the joining of the right and the left common iliac veins, usually at the level of the fifth lumbar vertebra.
The anterior cardiac veins (or anterior veins of right ventricle) are a variable number of small veins (usually 2-5) [1] which drain blood from the anterior portion of the right ventricle into the right atrium.
The right atrial appendage (lat: auricula atrii dextra) is located at the front upper surface of the right atrium. Looking from the front, the right atrial appendage appears wedge-shaped or triangular. Its base surrounds the superior vena cava. [6] The right atrial appendage is a pouch-like extension of the right atrium and is covered by a ...
The superior vena cava is made up of three layers, starting with the innermost endothelial tunica intima. The middle layer is the tunica media , composed of smooth muscle tissue, and the outermost and thickest layer is the tunica adventitia , composed of collagen and elastic connective tissue that allow for flexibility.
The crista terminalis (also known as the terminal crest, [citation needed] or crista terminalis of His [1]) is a vertical ridge on the [2]: 56 posterolateral [3] inner surface of the adult right atrium extending between the superior vena cava, and the inferior vena cava.
The CAJ is the joint between the superior vena cava and the atrium. The cavoatrial junction (CAJ) is the point at which the superior vena cava meets and melds into the superior wall of the cardiac right atrium. Both the superior and inferior vena cavae enter the right atrium, but only the superior entry is called the cavoatrial junction.
The anatomy of the veins of the heart is very variable, but generally it is formed by the following veins: heart veins that go into the coronary sinus: the great cardiac vein, the middle cardiac vein, the small cardiac vein, the posterior vein of the left ventricle, and the oblique vein of the left atrium (oblique vein of Marshall). Heart veins ...
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...