GENERAL ANATOMY
ANATOMY OF THE HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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fibroserous sac like structure surrounding the heart
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blood vessel that returns blood to heart from head & arms
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valve at the base of the aorta
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large artery that carries blood from the right ventricles
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Detailed explanation-1: -The pericardium is a double-layer-fibrous outermost layer and serous innermost layer-sac of fibroelastic/fibroserous tissue encasing the heart, anchoring it to the mediastinum (a passageway for many structures that pass through the thorax), and forming a cavity filled with a serous fluid.
Detailed explanation-2: -The parietal pericardium consists of an outer fibrous connective tissue sac lined by serosa. The serosal component consists of a single continuous layer of mesothelium that invests the fibrosa layer of the pericardium and extends over the root of the great arteries to completely cover the external surface of the heart.
Detailed explanation-3: -The fibrous pericardium is a layer of connective tissue that provides support and protection for the heart. It has a number of attachments to the diaphragm, the sternum (via the sterno-pericardial ligaments), and the vertebral column. It holds the heart in place.
Detailed explanation-4: -Parietal pericardium: The outer layer of the pericardium which is a conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels.