Palatoglossal arch
Palatoglossal Arch
The Palatoglossal Arch (pronunciation: /ˌpælətoʊˈɡlɒsəl ɑːrtʃ/), also known as the anterior pillar of the fauces, is a curved fold of tissue that extends from the lateral side of the soft palate to the side of the base of the tongue.
Etymology
The term "Palatoglossal" is derived from the Latin words "palatum" meaning "roof of the mouth" and "glossus" meaning "tongue". The term "arch" refers to the curved shape of the structure.
Anatomy
The Palatoglossal Arch is formed by the palatoglossus muscle, which is covered by a mucous membrane. It marks the border between the oral cavity and the oropharynx. The arch is located anterior to the palatopharyngeal arch, and between these two arches, the palatine tonsils are located.
Function
The main function of the Palatoglossal Arch is to help in the movement of the soft palate and the tongue during swallowing and speaking. It also plays a role in preventing food and liquid from entering the nasal cavity.
Related Terms
- Palatopharyngeal Arch: The arch located posterior to the palatoglossal arch.
- Palatine Tonsils: Lymphoid tissue located between the palatoglossal and palatopharyngeal arches.
- Soft Palate: The soft part at the back of the roof of the mouth.
- Tongue: The muscular organ in the mouth that is used for tasting, licking, swallowing, and articulating speech.
External links
- Medical encyclopedia article on Palatoglossal arch
- Wikipedia's article - Palatoglossal arch
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