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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 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
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]
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, so a periapical abscess associated with posterior teeth is more likely to spread into the submandibular space.
In jawed vertebrates, the mandible (from the Latin mandibula, 'for chewing'), lower jaw, or jawbone is a bone that makes up the lower – and typically more mobile – component of the mouth (the upper jaw being known as the maxilla). The jawbone is the skull's only movable, posable bone, sharing joints with the cranium's temporal bones.
In human anatomy, the facial skeleton of the skull the external surface of the mandible is marked in the median line by a faint ridge, indicating the mandibular symphysis (Latin: symphysis menti) or line of junction where the two lateral halves of the mandible typically fuse in the first year of life (6–9 months after birth). [1]
The adjective renal, meaning related to the kidney, is from the Latin rēnēs, meaning kidneys; the prefix nephro-is from the Ancient Greek word for kidney, nephros (νεφρός). [37] For example, surgical removal of the kidney is a nephrectomy , while a reduction in kidney function is called renal dysfunction .