part of part of Homo sapiens mandible zone of bone organ mylohyoid line of mandible 2026-03-19T00:00:00Z A diagonal bony ridge forming a zone of bone organ on the internal surface of the mandibular body, extending from below the last molar tooth posteriorly to the mental spine anteriorly, providing origin for the mylohyoid muscle and attachment for the pterygomandibular raphe. David Osumi-Sutherland