a. Thoracic cavity - lungs, trachea, bronchi, thymus, esophagus, pleurae. diaphragm
b. Cranial cavity - brain, cranial bones
c. Abdominal cavity - stomach, spleen, liver, gallbladder, small and large intestines, kidneys
d. Pelvic cavity - rectum, urinary bladder, large intestine, reproductive organs
e. Mediastinum - trachea, heart, nerves, blood vessels, esophagus