What is mylohyoid line?

Medical Definition of mylohyoid line : a ridge on the inner side of the bone of the lower jaw extending from the junction of the two halves of the bone in front to the last molar on each side and giving attachment to the mylohyoid muscle and to the superior constrictor of the pharynx. — called also mylohyoid ridge.

Where is mylohyoid line located?

mandible
The mylohyoid line is a bony ridge on the internal surface of the mandible. It runs posterosuperiorly. It is the site of origin of the mylohyoid muscle, the superior pharyngeal constrictor muscle, and the pterygomandibular raphe.

Where is the mylohyoid ridge line found on the mandible?

A ridge on the inner surface of the mandible extending upward and backward on either side from the lower part of the symphysis of the mandible. It provides attachment to the mylohoid muscle and the lowermost part of the superior constrictor of the pharynx.

Why is it called mylohyoid line?

It runs from the mandible to the hyoid bone, forming the floor of the oral cavity of the mouth. It is named after its two attachments near the molar teeth. It forms the floor of the submental triangle. It elevates the hyoid bone and the tongue, important during swallowing and speaking.

What is another name for the mylohyoid groove?

sulcus mylohyoideus
A groove on the medial surface of the ramus of the mandible beginning at the lingula; it lodges the mylohyoid artery and nerve. Synonym: sulcus mylohyoideus, mylohyoid fossa.

What is Lingula of mandible?

The lingula of the mandible is a tongue-shaped bony projection on the medial surface of the mandibular ramus that forms the medial boundary of the mandibular foramen.1 The lingula is a reliable anatomic landmark used to determine the position of the mandibular foramen.2 Due to the close proximity of the lingula to the …

What is geniohyoid?

The geniohyoid muscle is one of the suprahyoid muscles of the neck that is innervated by the ventral ramus of C1. Geniohyoid draws the hyoid bone up and forward during mastication and assists the opening of the mandible.

What attaches to mylohyoid line?

Extending upward and backward on either side from the lower part of the symphysis is the mylohyoid line, which gives origin to the Mylohyoideus; the posterior part of this line, near the alveolar margin, gives attachment to a small part of the Constrictor pharyngis superior, and to the pterygomandibular raphé.

What is the function of mylohyoid groove?

The mylohyoid mainly functions to elevate the hyoid bone, elevate the oral cavity, and depress the mandible. The source of motor innervation is via the mylohyoid nerve, which is a division of the inferior alveolar nerve, a branch of the mandibular division of the trigeminal nerve.

What passes through the mylohyoid groove?

All the motor fibers of the posterior division pass through the nerve to mylohyoid and are distributed to anterior belly of digastric and mylohyoid muscles. Nerve to mylohyoid takes origin from the inferior alveolar nerve just before the latter enters the mandible through the mandibular foramen.

What is Meckel’s cartilage?

Meckel’s cartilage, discovered by German anatomist J. F. Meckel (1781–1833), is hyaline cartilage formed in the mandibular process of the first branchial arch of vertebrate embryos.

What is the genial tubercle?

Genial tubercles are tiny bony projections located bilaterally around the lingual foramen, on the lingual surface of the mandible giving attachment to geniohyoid inferiorly & genioglossus superiorly.