Body Cavities
1. Pelvic Cavity – contains the rectum, urinary bladder and parts of the urinary system.
2. Abdominal Cavity – contains the peritoneum, liver, gallbladder, pancreas, spleen, stomach, intestines, kidneys, and major blood vessels.
3. Thoracic cavity – includes the pleural membrane, lungs, trachea, esophagus, pericardium, heart and great vessels.
a. abdominal cavity and thoracic cavity – are major cavities.
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