Eustachian Tube
Eustachian Tube
The Eustachian Tube, also known as the auditory tube or pharyngotympanic tube, is a tube that links the pharynx to the middle ear. In humans, the Eustachian tube is approximately 35mm long. It is named after the sixteenth-century anatomist Bartolomeo Eustachi.
Pronunciation
Eustachian Tube: /juːˈsteɪ.ʃən ˈtjuːb/
Etymology
The Eustachian Tube is named after the Italian anatomist Bartolomeo Eustachi who discovered it. The term "Eustachian" comes from "Eustachius", the Latin form of Eustachi's name.
Function
The primary function of the Eustachian Tube is to ventilate the middle ear space, ensuring that its pressure remains at near normal ambient air pressure. It also drains any accumulated secretions, infection, or debris from the middle ear space. Several small muscles located in the back of the throat and palate control the opening and closing of the tube.
Related Terms
- Middle Ear: The space behind the eardrum that contains the three auditory ossicles, which convey vibrations through the tympanic cavity to the internal ear.
- Pharynx: The part of the throat situated immediately posterior to the mouth and nasal cavity, and superior to the esophagus and larynx.
- Otitis Media: An infection or inflammation of the middle ear. This inflammation often begins when infections that cause sore throats, colds, or other respiratory or breathing problems spread to the middle ear.
See Also
External links
- Medical encyclopedia article on Eustachian Tube
- Wikipedia's article - Eustachian Tube
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