Eustachian Tube Anatomy Animation

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Eustachian Tube Anatomy Animation
The Eustachian tube, also known as the auditory tube, is a narrow channel that connects the middle ear to the nasopharynx, which is the upper throat and back of the nasal cavity. Its primary function is to equalize air pressure on both sides of the eardrum, ensuring that the eardrum can vibrate freely for proper sound transmission.
Structure of the Eustachian Tube:
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Length and Diameter: The tube is approximately 3.5 cm long in adults. It is lined with mucous membrane and is narrower at the middle ear end and wider at the nasopharyngeal opening.
Components: It consists of two parts: the bony part, which makes up the first third closest to the middle ear, and the cartilaginous part, which forms the remaining two-thirds and opens into the nasopharynx.
Musculature: The function of the Eustachian tube is supported by several muscles, including the tensor veli palatini and the levator veli palatini, which help open and close the tube during activities like swallowing and yawning.
Function:
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Pressure Equalization: By opening and closing, the Eustachian tube equalizes the atmospheric pressure in the middle ear with the pressure in the external environment. This is crucial for the proper functioning of the eardrum and for preventing middle ear infections.
Drainage: It allows drainage of any fluid from the middle ear into the nasopharynx, which helps maintain a clean and infection-free middle ear.
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[@yogeshkhaire3513]

Sir I had left ear MRM surjery 10 years ago but I'm still feeling unbalanced some time can you please help me.

[@biplabkumar5325]

Sir will you plan for remarkable rapid revision for neet pg 2024 kindly reply.....and when will be that session ??

[@amolkelkar7231]

Nice information

[@doctorbhanuprakash]

So nice