21. The frontal bone has a short front branch. 22. The frontal bones of the skull are fused together into a single compound element, for example. 23. The merging of the two frontal bones leads to transverse growth restriction and parallel growth expansion. 24. It consists of a right frontal bone . 25. It consists of a left frontal bone . 26. The frontal bones are very wide. 27. The frontal bone , which is positioned directly behind the prefrontals, bears a groove that runs along its midline. 28. The dense connective tissue found between the frontal bones is replaced with bone tissue as the child grows older. 29. On the frontal bone is a healed bone injury that is attributed to the fall on a sharp stone. 30. The "'Postorbital process "'is a projection on the frontal bone near the rear upper edge of the eye socket.