What is the normal structure and function of thepericardium? The pericardium is a double-layered sac that encases the heart and is attached to the great vessels at the heart base. It consists of an outer fibrous layer (parietal pericardium) and an innerserous membranecovering the heart (viscer...
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A detailed comparative survey of the structure of developing normal and mutant hearts, including the endocardium, its cellular derivatives, and the extracellular matrix, known as cardiac jelly, showed that in the mutant there are fewer than the normal number of endocardial cells lining the heart ...
Although the structure of myocardium is the same in the atria and ventricles, it is thicker in the ventricles. This is due to the greater hydrostatic pressure that the ventricles must overcome when pumping the blood into the systemic vessels. Endocardium...
Little is currently known about cellular and molecular influences on proliferation of these source CMs. Recent studies have implicated the epicardium, a mesothelial layer surrounding the cardiac chambers, in promoting heart regeneration. This structure acts as progenitor tissue for fibroblasts, vascular ...
Discuss the structure of the pericardium and the heart. Include tissue types.1. The thin serous membrane that is the outer surface of the heart is the ___. 2. The thick, middle layer of the heart is the ___. 3. I...
18.3Heart structure, disease, and regeneration 18.3.1The myocardium The heart is a vital organ, which is indispensable for maintaining normalhomeostasisof the organism. Themyocardium, i.e., thecardiac muscletissue, constitutes about 95% of the heart mass and is responsible for its pumping action....