There are not five cavities of the human body. There are the 1)cranium that holds the brain, 2) the thorax that hold the heart andlungs and stomach, liver, pancreas, spleen, appendix and kidneysand then 3) the bowels area that hold the small and largeintestines, (the ovaries, uterus for women), the bladder and thetesticles (for men).