Hypopharyngeal eminence

Hypopharyngeal eminence is a structure that forms during the embryonic development of vertebrates. It is located in the pharynx, specifically in the lower part of the pharynx known as the hypopharynx. The hypopharyngeal eminence is formed from the third and fourth pharyngeal arches.

Etymology

The term "hypopharyngeal eminence" is derived from the Greek words "hypo" meaning "under", "pharynx" meaning "throat", and "eminence" meaning "projection". Thus, the term can be translated as "projection under the throat".

Development

The hypopharyngeal eminence develops during the fourth week of embryonic development. It is formed from the third and fourth pharyngeal arches, which are structures that form in the embryonic pharynx. The third pharyngeal arch contributes to the formation of the stylopharyngeus muscle, while the fourth pharyngeal arch contributes to the formation of the thyrohyoid muscle and the cricothyroid muscle.

Function

The hypopharyngeal eminence plays a crucial role in the development of the larynx. It gives rise to the arytenoid cartilages, the cricoid cartilage, and the thyroid cartilage. These structures are essential for the function of the larynx, which is involved in breathing, sound production, and protection of the trachea from food aspiration.

Related Terms

• Pharyngeal arches
• Hypopharynx
• Larynx
• Arytenoid cartilages
• Cricoid cartilage
• Thyroid cartilage

Hypopharyngeal eminence Resources
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