Related Experiment Video
Updated: Jun 12, 2026

Discovering Middle Ear Anatomy by Transcanal Endoscopic Ear Surgery: A Dissection Manual
Published on: January 11, 2018
Revisiting Eustachian Tube Anatomy and Physiology
Davide Soloperto1, Mohamed Badr-El-Dine2, Muaaz Tarabichi3
1Department of Otolaryngology-Head and Neck Surgery, Modena and Reggio Emilia University, Italy.
None:
The Eustachian tube (ET) it is a complex structure connecting the middle ear cavity with the nasopharynx. Its function is to maintain middle ear ventilation to facilitate transmission of sound from the tympanic membrane to the cochlea. It is located medial to the parapharyngeal space. The ET and tympanomastoid cavities form an anatomic and functional unit that cannot easily be divided, and it plays a fundamental role in the etiology of different clinical entities. However, the underlying pathophysiological mechanisms are not yet fully understood, and further research is needed to address the gaps present in the literature.
Related Concept Videos
Anatomy of the Ear
Anatomy of Respiratory System I: Upper Respiratory Tract
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.
The Auditory Ossicles
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
The Cochlea
Equilibrium and Balance
Nose and Nasal Cavity