In Latin, the intermediate bone of the forearm - os intermedium antebrachi - is called os interulnae compromissae. The name in translation means “about bone bone”. Anatomy studies the bones of a person at different stages of his life during: embryonic development, birth and emerging adulthood. The main elements of the human anatomical apparatus include bone formations. It is thanks to them that the functions of movement, protection and support are carried out. In the human structure, the following elements with their varied arrangement are distinguished: scapula, pelvic bone, ribs. In his development, man has gone through a long evolutionary path. Over the course of many centuries, our skeleton has undergone many changes: it has become larger, more mobile and stronger. The forearm bone, intermediate (lat. Os intermedium antebrachij - interosseous bone of the forearm) is 4 short thin flat spongy rectangular bones that provide connection between the muscles and the ulna and radius bones and are involved in the formation of the alternating interclavicular and lo