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Body Cavities and Membranes

Body Cavities and Membranes. Body Cavities. Ventral Cavity - divided by the diaphragm into Thoracic and Abdominopelvic Cavities. Divisions of the Thoracic Cavity. Pericardial Cavity- contains heart. Pleural Cavity- contains lungs. Pericardial Cavity. Divisions of the Abdominopelvic Cavity.

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Body Cavities and Membranes

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  1. Body Cavities and Membranes

  2. Body Cavities • Ventral Cavity-divided by the diaphragm into Thoracic and Abdominopelvic Cavities

  3. Divisions of the Thoracic Cavity • Pericardial Cavity-contains heart Pleural Cavity-contains lungs Pericardial Cavity

  4. Divisions of theAbdominopelvic Cavity • Upper portion- contains stomach, liver, spleen, gall bladder and mosts of the intestines • Lower portion/Pelvic Cavity- contains rectum, urinary bladder, reproductive organs, and rest of intestines

  5. Dorsal Cavity Divided into two more cavities… • Cranial Cavity-contains the brain • Vertebral Cavity- contains the spinal cord

  6. Membranes • Parietal Pleura • Visceral Pleura • Parietal Peritoneum • Visceral Peritoneum • Pericardium • Greater Omentum

  7. Break it down… • Parietals – Line the CAVITY they are in • Viscerals – Line the ORGANS • Pleura – refers to the chest area (pleural cavity) • Peritoneum – refers to the abdominal area • Pericardial – peri = around; cardial= the heart • Greater Omentum- holds the spleen in place by attaching it to the stomach

  8. So let’s try this again… • Parietal Pleura • Visceral Pleura • Parietal Peritoneum • Visceral Peritoneum • Pericardium • Greater Omentum

  9. Other membrane types • Synovial Membranes - • These membranes secrete a fluid to lubricate the ends of bones in joints. • Serous Membranes • These membranes secrete a watery fluid to keep the organs in the cavities lubricated and separated so they are able to move. • Meninges • These membranes provide a protective covering for the brain and spinal cord. • Mucous Membranes • These membranes line the tubes of the digestive system, respiratory system, urinary system, and reproductive system for protection.

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