Mandibular prominence
Mandibular prominence
The Mandibular prominence (pronounced: man-dib-yuh-lar prom-uh-nuhns) is a significant structure in the embryonic development of the human face. It is one of the two swellings that appear on the first pharyngeal arch, also known as the mandibular arch. The other swelling is the maxillary prominence.
Etymology
The term "Mandibular prominence" is derived from the Latin word "mandibula" meaning "jaw" and the English word "prominence" referring to something that is noticeable or important.
Development
The mandibular prominence is formed during the fourth week of embryonic development. It is primarily composed of mesenchyme, a type of embryonic connective tissue, which is derived from the neural crest cells. These cells migrate to the first pharyngeal arch and proliferate to form the mandibular prominence.
Function
The mandibular prominence gives rise to the lower jaw or mandible, and associated structures such as the lower lip and the anterior part of the tongue. It also contributes to the formation of the malleus and incus, two of the three tiny bones in the middle ear.
Related Terms
External links
- Medical encyclopedia article on Mandibular prominence
- Wikipedia's article - Mandibular prominence
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