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PERITONEUM and COELOM

PERITONEUM and COELOM. Peritoneum. Coelom: Def. – a body cavity lined with mesoderm. Examples: Pericardial cavity. Pleural cavities. Abdominopelvic cavity. Peritoneum. Mesodermal membranes associated with a true coelom: Serous membranes. Parietal membrane:

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PERITONEUM and COELOM

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  1. PERITONEUMandCOELOM

  2. Peritoneum • Coelom: Def. – a body cavity lined with mesoderm. • Examples: Pericardial cavity. Pleural cavities. Abdominopelvic cavity.

  3. Peritoneum • Mesodermal membranes associated with a true coelom: Serous membranes. Parietal membrane: Lines the walls of the coelom. Visceral membrane: Covers the viscera within the coelom.

  4. Peritoneum • Mesenteries: Double membranes connecting the parietal and the visceral peritoneum. In some instances mesenteries are referred to as ligaments.

  5. Mesenteries • Functions: Support viscera. Provide pathway for blood vessels and nerves to reach viscera.

  6. Peritoneum • Parietal peritoneum. • Visceral peritoneum. • Retroperitoneal: Refers to structures that lie behind the peritoneum: i.e., kidney. Usually covered on one surface by peritoneum.

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