Laryngopharynx
Laryngopharynx
The Laryngopharynx (pronounced: la·ryn·go·phar·ynx, /ləˌriNGgōˈferiNGks/) is a part of the pharynx that is involved in both the respiratory and digestive systems.
Etymology
The term "Laryngopharynx" is derived from two Greek words: "laryngo" meaning "larynx" and "pharynx" meaning "throat".
Anatomy
The laryngopharynx is the lower part of the pharynx, extending from the upper edge of the epiglottis to the level of the lower border of the cricoid cartilage, where it continues with the esophagus. It serves as a common pathway for both air (respiration) and food (digestion).
Function
The primary function of the laryngopharynx is to direct food and air where they need to go. When swallowing, the epiglottis closes over the larynx to prevent food and liquid from entering the lungs. The swallowed substances then pass into the esophagus and continue on to the stomach.
Related Terms
- Pharynx: The part of the throat behind the mouth and nasal cavity, and above the esophagus and larynx.
- Epiglottis: A leaf-shaped flap in the throat that prevents food and drink from entering the windpipe and the lungs.
- Larynx: Also known as the voice box, it is involved in breathing, producing sound, and protecting the trachea against food aspiration.
- Esophagus: The tube that connects the throat with the stomach.
- Cricoid cartilage: The only complete ring of cartilage around the trachea, it forms the back part of the voice box.
External links
- Medical encyclopedia article on Laryngopharynx
- Wikipedia's article - Laryngopharynx
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