lingula of mandible lingula of mandible the lingula of the mandible is a prominent bony ridge on the medial side of the mandible. it is next to the mandibular foramen. it gives attachment to the sphenomandibular ligament. lingula of mandiblelingula of mandible (green color)detailspart ofmandiblesystemskeletalidentifierslatinlingula mandibulaeta98a02.1.15.029ta2866fma59470anatomical terminology structure the lingula of the mandible is a prominent bony ridge on the medial side of the mandible. it is next to the mandibular foramen. it has a notch from which the mylohyoid groove originates. it gives attachment to the sphenomandibular ligament. variation the lingula of the mandible can take many shapes, including triangular, truncated, and nodular. in a majority of people, this shape is symmetrical.