This real human sternum displays the elongated structure of the breastbone, including the manubrium, body, and inferior portion. The surface shows natural porosity and subtle texture throughout, with clearly defined costal notches along the sides where ribs articulate. A solid anatomical specimen for study or display, ideal for examining thoracic structure, rib articulation points, and overall human skeletal anatomy.nWe believe education is the greatest gift osteology can share and that every human specimen can contribute to the advancement of science. These specimens are provided to us by retired physicians, medical researchers, dental professionals, and former university medical programs. We also work with accredited donor programs. A small sample – often antiques that simply do not qualify for medical/research grade usage – are made available to osteology enthusiasts worldwide so that they may continue to educate and inform.nnGreatest Length 12 cm (4.7 in)nGreatest Width 4 cm (1.6 in)nGreatest Height 1.4 cm (0.6 in)