Systema Cardiovasculare Cardiovascular system

1 Pericardium. Enveloping and gliding system of the heart comprising two layers, one of fibrous tissue and the other of bilayered serous tissue. A

2 Fibrous pericardium. Pericardium fibrosum. Tough, external, connective tissue layer of the pericardium. It is partially fused with the diaphragm.

3 Sternopericardiac ligaments. Ligg. ster-nopericardiaca. Connective tissue reinforcing the pericardium at the sternum.

4 Serous pericardium. Pericardium serosum. Layer of simple squamous epithelium (me-sothelium) which lines the fibrous pericardium (parietal layer) and covers the surface of the heart (visceral layer). Its visceral and parietal layers become continuous in the region of the great vessels.

5 Parietal layer. Lamina parietalis. Serous layer of the pericardium. It lines the fibrous pericardium.

6 Visceral layer. Lamina visceralis [epicardium]. Serous layer covering the surface of the heart (epicardium). It consists of mesothelium and a fibrous lamina propria.

7 Pericardial cavity. Cavitas pericardialis. Space between the parietal and visceral layers of the serous pericardium. It contains a film of serous fluid.

8 Transverse sinus of pericardium. Sinus trans-versus pericardii. Narrow passage in the peri-cardial space behind the aorta and pulmonary trunk and in front of the veins. A

9 Oblique sinus of pericardium. Sinus obliquus pericardii. Recess in the pericardial space that extends between the right pulmonary veins and inferior cava and between the right and left pulmonary veins. A

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