Learn about the organ's amazing power and the functions of its many parts.
41+ The External Anatomy Of The Heart. Within the mediastinum, the heart is separated from the other mediastinal structures by a tough membrane known as the pericardium, or pericardial sac, and sits in its own space called the pericardial cavity. The heart sends deoxygenated blood to the lungs, where the blood loads up with oxygen and unloads carbon dioxide, a waste product of metabolism.
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Located between the lungs in the middle of the chest, the heart pumps blood through the network of arteries and veins known as the cardiovascular system. Right and left atria, and right and left ventricles. The middle layer, or myocardium in the pulmonary circuit, deoxygenated blood leaves the right ventricle of the heart via the pulmonary artery and travels to the lungs, then returns.
The heart is tilted so that its pointed end, the apex, points downward toward the left hi.
Webmd's heart anatomy page provides a detailed image of the heart and provides information on the heart has four chambers: The chambers of the heart. Traditionally, the heart is described as having left heart and right heart chambers. Anatomy and function of the heart.
