Tags: Anatomical Structure, Embryology.

In humans the cartilaginous bar of the mandibular arch is formed by what are known as Meckel’s cartilages (right and left) also known as Meckelian cartilages; above this the incus and malleus are developed.The dorsal end of each cartilage is connected with the ear-capsule and is ossified to form the malleus; the ventral ends meet each other in the region of the symphysis menti and are usually regarded as undergoing ossification to form that portion of the mandible which contains the incisor teeth.The intervening part of the cartilage disappears; the portion immediately adjacent to the malleus is replaced by fibrous membrane which constitutes the sphenomandibular ligament while from the connective tissue covering the remainder of the cartilage the greater part of the mandible is ossified.Johann Friedrich Meckel the Younger discovered this cartilage in 1820.This article incorporates text from a public domain edition of Gray’s Anatomy.

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