Thoracic cavity – contains the heart, lungs, thymus gland, esophagus, trachea.
Cranial cavity – brain, cerebrospinal fluid, meninges of the brain.
Abdominal cavity – liver, stomach, pancreas, intestines, spleen, gallbladder, small and large intestine.
Pelvic Cavity – bladder, reproductive organ, rectum, anal canal, ureters, urethra.
Mediastinum – trachea, heart, thymus, esophagus, large blood vessels.