THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The lower portion is the pelvic cavity, and it contains the urinary bladder, the rest of the large intestine (the lower portion), and the internal reproductive organs.

Detailed explanation-2: -The abdominal cavity holds digestive organs and the kidneys, and the pelvic cavity holds reproductive organs and organs of excretion.

Detailed explanation-3: -The pelvic cavity is a bowl-like structure that sits below the abdominal cavity.

Detailed explanation-4: -The pelvis is continuous with the abdominal cavity, arbitrarily divided from it by the pelvic inlet of the bony pelvis. As such, the pelvic organs are really still abdominal organs. Within the pelvis is the bladder (retroperitoneal), the lower ureters (retroperitoneal), and the female reproductive organs.