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The lingula of the mandible is a prominent bony ridge on the medial side of the mandible. [1] It is next to the mandibular foramen. [1] It has a notch from which the mylohyoid groove originates. It gives attachment to the sphenomandibular ligament.
The function of the sphenomandibular ligament is to limit distension of the mandible in an inferior direction. It is slack when the temporomandibular joint (TMJ) is in closed position; it is taut when the condyle of the mandible is situated anterior to the temporomandibular ligament. [2]
The mandible has two main holes , found on both its left and right sides: The mandibular foramen, is above the mandibular angle in the middle of each ramus. The mental foramen sits on either side of the mental protuberance (chin) on the body of mandible, usually inferior to the apices of the mandibular first and second premolars. As mandibular ...
laterally, by the ramus of mandible. [1] This contains the mandibular foramen, leading to the mandibular canal through which the inferior alveolar nerve passes. This also contains the lingula, a triangular piece of bone that overlies the mandibular foramen antero-medially
The mylohyoid line is a bony ridge on the internal surface of the body of the mandible. The mylohyoid line extends posterosuperiorly. The mylohyoid line continues as the mylohyoid groove on the internal surface of the ramus. The mylohyoid muscle originates from the anterior (front) part of the mylohyoid line. [1]
Rotational. During the opening of mandible, rotation is the movement at the start of its movement, this occurs in the lower temporomandibular joint compartment. As mandible is being depressed, condyle is tightly bounded to the articular disc by medial and collateral ligaments, hence only allowing rotational movements. [7]
the Lingula of left lung, one of the segments of the left lung with a tongue-shape; The Sphenoidal lingula, a part of the sphenoid bone; The Lingula of mandible, a ridge on the medial aspect of the body of the mandible, just anterior to the mandibular foramen; the Lingula of cerebellum; Taenia of fourth ventricle
Diagram of medial surface of the mandible, showing the slanting attachment of mylohyoid (the mylohyoid line). This arrangement means that the apices of posterior teeth are more likely to be below the level of mylohyoid. Left submandibular space (right side shown with digastric muscle removed).