Translations:Benutzer:Arian/Klett-Mini-Test/1513/en

The Peritoneum or Mesentery of the Cattle

It serves as sheath organ from the animal kingdom in the preparation of the flower heads of the dandelion. The peritoneum (*Serosa*, *Peritoneum*) lines the abdominal cavity and all the organs contained within it, as well as the pelvic cavity. In the abdominal and pelvic cavity it forms the boundary membrane of the metabolic pole in the proper sense. The thoracic cavity too — the centre of the rhythmic system with heart and lungs — is lined by a *Peritoneum*, the pleura. This, however, is strictly separated from the peritoneum by the diaphragm (*Diaphragma*). The *Peritoneum* is a skin organ turned inward and inverted into the inner world of the body. Its surface, facing the interior, is formed by squamous cells embedded in a basement membrane. This lies upon the connective and muscular tissue of the walls of the organ sheaths and of the body cavities respectively. When detached, one holds in one's hands a translucent, lustrous, membrane-like skin. This is traversed by a fine network of nerve fibres that centre in individual ganglia and ultimately converge in the great ganglion centre of the solar plexus (*Plexus solare*), which in cattle lies beneath the vertebral column at the boundary region