Which cavity is the ilium a part of?

The ilium is part of the pelvic cavity, which is the lower part of the torso. This area is surrounded by the pelvic bones and provides support for the lower abdominal organs. The ilium itself is one of the three bones that make up the hip bone, alongside the ischium and pubis. Understanding the anatomical regions of the body helps in grasping how different structures support various functions, including those related to the reproductive, urinary, and digestive systems. The other cavities mentioned, such as the abdominal, thoracic, and cranial cavities, do not contain the ilium and serve different functions and contain different organs within the human body. The abdominal cavity houses organs like the stomach and liver, the thoracic cavity contains the heart and lungs, and the cranial cavity encases the brain.