a. Thoracic cavity - heart, lungs, thymus gland, trachea, esophagus, breasts, diaphragm
b. Cranial cavity- brain, cranial cavity
c. Abdominal cavity - stomach, small intestine, large intestine, spleen, liver, kidney
d. Pelvic cavity - urinary bladder, rectum, pelvies, internal reproductive organs
f. Mediastinum - heart, thymus gland, portions of esophagus and trachea