Pharyngeal: Difference between revisions
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Latest revision as of 13:05, 18 March 2025
Pharyngeal refers to anything related to the pharynx, the part of the throat behind the mouth and nasal cavity, and above the esophagus and larynx – the tubes running down from the back of the mouth to the stomach and the lungs. It is an important part of the digestive and respiratory systems, and functions as a pathway for the movement of food from the mouth to the esophagus, and of air from the nose and mouth to the larynx.
Anatomy[edit]
The pharynx is divided into three sections: the nasopharynx, the oropharynx, and the laryngopharynx. Each of these sections has a different function and is lined with a different type of tissue.
Nasopharynx[edit]
The nasopharynx is the uppermost part of the pharynx, connecting the nasal cavities above to the throat below. It serves as a passageway for air and is lined with ciliated pseudostratified columnar epithelium, which helps to filter out dust and small particles.
Oropharynx[edit]
The oropharynx is located in the middle part of the pharynx and serves as a passageway for both air and food. It is lined with stratified squamous epithelium, which is designed to withstand the abrasive effects of food passing through.
Laryngopharynx[edit]
The laryngopharynx is the lowermost part of the pharynx and connects to the esophagus and larynx. It also serves as a passageway for both air and food and is lined with stratified squamous epithelium.
Function[edit]
The primary function of the pharynx is to provide a passageway for the respiratory and digestive tracts. It also plays a role in speech as the pharyngeal muscles function to raise and lower the pharynx during swallowing and speech.
Diseases and Conditions[edit]
There are several diseases and conditions that can affect the pharynx, including pharyngitis, tonsillitis, and sleep apnea. These conditions can cause symptoms such as sore throat, difficulty swallowing, and snoring.
