Definitions for eustachian tube
yuˈsteɪ ʃən, -ˈsteɪ ki əneu·stachi·an tube

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Eustachian tube, auditory tubenoun

   either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum

WiktionaryRate this definition:0.0 / 0 votes

1. Eustachian tubenoun

   In humans and other land vertebrates, a tube that links the pharynx to the cavity of the middle ear to allow the equalization of the pressure on both sides of the eardrum.

2. Etymology: Named after the Italian scientist B. Eustachio

WikipediaRate this definition:0.0 / 0 votes

1. Eustachian tube

   In anatomy, the Eustachian tube, also known as the auditory tube or pharyngotympanic tube, is a tube that links the nasopharynx to the middle ear, of which it is also a part. In adult humans, the Eustachian tube is approximately 35 mm (1.4 in) long and 3 mm (0.12 in) in diameter. It is named after the sixteenth-century Italian anatomist Bartolomeo Eustachi.In humans and other tetrapods, both the middle ear and the ear canal are normally filled with air. Unlike the air of the ear canal, however, the air of the middle ear is not in direct contact with the atmosphere outside the body; thus, a pressure difference can develop between the atmospheric pressure of the ear canal and the middle ear. Normally, the Eustachian tube is collapsed, but it gapes open with swallowing and with positive pressure, allowing the middle ear's pressure to adjust to the atmospheric pressure. When taking off in an aircraft, the ambient air pressure goes from higher (on the ground) to lower (in the sky). The air in the middle ear expands as the plane gains altitude, and pushes its way into the back of the nose and mouth; on the way down, the volume of air in the middle ear shrinks, and a slight vacuum is produced. Active opening of the Eustachian tube (through actions like swallowing or the Valsalva maneuver) is required to equalize the pressure between the middle ear and the ambient atmosphere as the plane descends. A diver also experiences this change in pressure, but with greater rates of pressure change; active opening of the Eustachian tube is required more frequently as the diver goes deeper, into higher pressure.

ChatGPTRate this definition:0.0 / 0 votes

1. eustachian tube

   The eustachian tube is a narrow passage leading from the pharynx to the cavity of the middle ear, allowing the pressure in the ear to be equalized. It enables the drainage of normal and pathological secretions from the middle ear to the nasopharynx. Dysfunction or blockage can lead to diseases such as otitis media or barotrauma.

WikidataRate this definition:0.0 / 0 votes

1. Eustachian tube

   The Eustachian tube, also auditory tube or pharyngotympanic tube, is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear. In adult humans the Eustachian tube is approximately 35 mm long. It is named after the sixteenth-century anatomist Bartolomeo Eustachi. Some modern medical books call this the pharyngotympanic tube.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Eustachian Tube

   A narrow passageway that connects the upper part of the throat to the TYMPANIC CAVITY.

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1. • Salpinx

How to pronounce eustachian tube?

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How to say eustachian tube in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of eustachian tube in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of eustachian tube in Pythagorean Numerology is: 5

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=eustachian tube
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Eustachian_Tube
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Eustachian_Tube
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=eustachian tube