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The Hear5 - o The outer surface of the heart is lined by...

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The Heart Functions of the Heart The heart functions include The heart generates blood pressure. The heart routes blood through the systemic and pulmonary circulation. The pumping action of the heart and the valves of the heart ensure a one-way flow of blood through the heart and blood vessels. The heart helps regulate blood supply to tissues. Size, Form, and Location of the Heart The heart is approximately the size of a fist and is located in the pericardial cavity. Anatomy of the Heart Pericardium o The pericardial sac consists of a fibrous and serous pericardium. The fibrous pericardium is lined by the parietal pericardium.
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Unformatted text preview: o The outer surface of the heart is lined by the visceral pericardium (epicardium). o Between the visceral and parietal pericardium is the pericardial cavity, which is filled with pericardial fluid. External Anatomy o Atria are separated externally from the ventricles by the coronary sulcus. The right and left ventricles are separated externally by the interventricular sulci. o The inferior and superior venae cavae enter the right atrium. The four pulmonary veins enter the left atrium. o The pulmonary trunk exits the right ventricle, and the aorta exits the left ventricle....
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