KEYWORDS Eustachian Tube, Inferior Nasal Concha, Inferior Turbinate. So the study will be helpful for radiologist for differential diagnosis and ENT surgeons for endoscopic evaluation in patients with chronic otitis media. Proper eustachian tube function helps maintain overall ear health. Protect your middle ear from pathogens (microorganisms that cause disease). Ventilate your middle ear and equalize air pressure on either side of your eardrum. They: Drain excess fluids and secretions from your middle ear. It stays closed and serves as a protective barrier for the middle ear. CONCLUSION In the present work, the exact position of auditory tube can be located by various measurements. Your eustachian tubes have three primary functions. The tube also protects from viruses and bacteria. The height was more on right side than on left side. The A-P length on right side was 8.7 mm on right and 7.6 mm on left side, which was statistically significant. It has been classically hypothesized that a mass in the nasopharynx causes an obstacle to air flow through the eustachian tube, thereby creating a negative. Oval shape more common on right side (52%) and triangular on left (48%). RESULTS The vertical length and A-P length was taken and shape was observed. The mean and standard deviation of these parameters were calculated. The pharyngeal opening of Eustachian tube was observed for its shape, size and important measurements taken with the help of sliding vernier calliper. MATERIALS AND METHODS Study was carried out, 50 sagittal sections (25 right side and 25 left side) of head and neck specimens from adult formalin fixed cadavers from the Department of Anatomy, Krishna Institute of Medical Sciences Deemed University, Karad, Maharashtra, India. Moreover, the ET protects the middle ear against nasopharyngeal pressure variations, ascending secretions, and microorganisms. These tubes connect the nasopharynx to the middle ear and help regulate. It is an important landmark for endoscopic evaluation in patients with chronic otitis and also for the transnasal approach to the infratemporal fossa. Nasopharyngeal cancers can grow and press on one of the two Eustachian tubes. Abstract : Eustachian tube extends from the anterior wall of the middle ear to the lateral wall of the nasopharynx at the level of inferior nasal choncha.
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