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Coronary blood flow in Humans at rest is about 225-250 ml/minute, about 5% of cardiac output. At rest, the heart extracts 60-70% of oxygen from each unit of blood delivered to heart [other tissue extract only 25% of O2. Factors Affecting Blood Flow to CORONARY.
3 lis 2023 · The pericardium is the membrane that encloses the heart and the roots of the major heart vessels, consisting of an outer fibrous layer (fibrous pericardium) and an inner double serous membrane layer (serous pericardium).
The pericardium, which literally translates as “around the heart,” consists of two distinct sublayers: the sturdy outer fibrous pericardium and the inner serous pericardium. The fibrous pericardium is made of tough, dense connective tissue that protects the heart and maintains its position in the thorax.
Inflammation of the pericardium, pericarditis (per″˘ı-kar-di′tis), often results in a decrease in the already small amount of serous fluid. This causes the pericardial layers to rub, bind, and stick to each other, forming painful adhesions that inter-fere with heart movements. _____
3 lis 2023 · The heart is a muscular organ that pumps blood around the body by circulating it through the circulatory/vascular system. It is found in the middle mediastinum, wrapped in a two-layered serous sac called the pericardium. The heart is shaped as a quadrangular pyramid, and orientated as if the pyramid has fallen onto one of its sides so that its ...
The pericardium is a roughly flask-shaped sac that contains the heart and proximal portions of the great vessels (Fig 1). The pericardium exerts mechanical effects by stabilizing the heart in its anatomic position and by maintaining cardiac geometry and pressure–volume relationships of the cardiac
25 kwi 2022 · Get free human anatomy worksheets and study guides to download and print. These are PDF, PNG, and Google Slides worksheets.
