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 and other land vertebrates, the Eustachian tube is a part of the middle ear. It is named after the sixteenth-century anatomist Bartolomeo Eustachi.

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. The secondary function is to drain 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.

Anatomy

The Eustachian Tube, approximately 35 mm (1.4 in) long in adults, extends from the anterior wall of the middle ear to the lateral wall of the nasopharynx, approximately at the level of the inferior nasal concha.

Clinical significance

Dysfunction of the Eustachian Tube might occur due to allergies, colds, sinus infections, or ear infections, which can lead to problems such as otitis media or Barotrauma of the ear. Eustachian Tube dysfunction has been linked to tinnitus.

Treatment

Treatment for Eustachian Tube dysfunction usually involves medications to reduce the inflammation of the tube. In severe cases, surgery may be required.

See also

• Otitis media
• Barotrauma
• Tinnitus
• Bartolomeo Eustachi

External links

• Eustachian Tube at WikiMD

Eustachian Tube Resources
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