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
Pleural Cavity- contains lungs
Pericardial Cavity- contains heart
Pericardial Cavity

4. 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

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 - 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.