Mesothelium
Membrane lining body cavities / From Wikipedia, the free encyclopedia
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The mesothelium is a membrane composed of simple squamous epithelial cells of mesodermal origin,[2] which forms the lining of several body cavities: the pleura (pleural cavity around the lungs), peritoneum (abdominopelvic cavity including the mesentery, omenta, falciform ligament and the perimetrium) and pericardium (around the heart).
Mesothelium | |
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Details | |
Precursor | Somatopleuric mesenchyme |
Identifiers | |
Latin | mesothelium |
TH | H2.00.02.0.02017, H3.04.08.0.00003 |
FMA | 14074 |
Anatomical terminology |
Mesothelial tissue also surrounds the male testis (as the tunica vaginalis) and occasionally the spermatic cord (in a patent processus vaginalis). Mesothelium that covers the internal organs is called visceral mesothelium, while one that covers the surrounding body walls is called the parietal mesothelium. The mesothelium that secretes serous fluid as a main function is also known as a serosa.