Eustachian Tube Anatomy

The tube extends from the petrous portion of the temporal bone to the fleshy lateral wall of the nasopharynx and hence has both bony and cartilaginous elements. It aerates the middle ear system and clears mucus from the middle ear into the nasopharynx.

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The eustachian tube is located in the para pharyngeal space and is closely linked to the infratemporal fossa.

Eustachian tube anatomy. The eustachian tube is about 3138 mm 1215 inches long in humans and lined with mucous membrane. The eustachian tube connects the anterior wall of the middle ear to the lateral wall of the nasopharynx at the level of the inferior nasal concha. The eustachian tube also known as the auditory tube or pharyngotympanic tube is a tube that links the nasopharynx to the middle ear.

In adult humans the eustachian tube is approximately 35 mm 14 in long and 3 mm 012 in in diameter. The eustachian tube is a canal that connects the middle ear to the nasopharynx which consists of the upper throat and the back of the nasal cavity. It is widest at the pharyngeal opening and tympanic cavity and.

The eustachian tube continues from the front wall of the middle ear to the side wall of the nasopharynx progressing along the posterior edge of the medial pterygoid plate. The eustachian tube pharyngotympanic tube connects the middle ear cavity with the nasopharynx. It controls the pressure within the middle ear.

It is a part of the middle ear. In adults the eustachian tube is approximately 43 mm in length and has a variable diameter throughout ie. Eustachian tube also called auditory tube hollow structure that extends from the middle ear to the pharynx throat.

Nasopharynx Definition Anatomy Function Diagram