: Bones act as levers that work with muscles to facilitate locomotion Cleveland Clinic .
: The 80 bones along the body's central axis, including the skull, vertebral column, and thoracic cage. Sumuk Sistemi Wikipedia
: Small bones embedded in tendons, like the kneecap (patella). : Bones act as levers that work with
: Hematopoiesis—the creation of blood cells—occurs within the bone marrow, particularly in long bones and the pelvis Wikipedia . including the skull