Body Cavities and Membranes

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Organization of the Human Body – Body Cavities and Membranes

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Presentation transcript:

Body Cavities and Membranes

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

Divisions of the Thoracic Cavity Pleural Cavity- contains lungs Pericardial Cavity- contains heart Pericardial Cavity

Divisions of the Abdominopelvic 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

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

Membranes Parietal Pleura Visceral Pleura Parietal Peritoneum Visceral Peritoneum Pericardium Greater Omentum

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

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

Other membrane types Synovial Membranes - Serous Membranes Meninges 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.