Re: How is the ear connected to the throat?

Hi Graham

The anterior wall of the middle ear contains an opening that leads 
directly into the eustachian tube. This tube contains both bone and hyaline 
cartilage, and connects the middle ear with the nasopharynx (upper portion 
of your throat). The function of the tube is to equalize pressure on both 
sides of your tympanic membrane to ensure that the eardrum vibrates 
freely when struck by sound waves. Infections also may travel along this 
passageway from the throat and nose to the ear. This tube is normally 
closed at its medial end; during swallowing and yawning, it opens. This 
allows atmospheric air to enter and leave the middle ear until the 
internal pressure equals the external pressure. If the pressure isn't 
relieved, intense pain, hearing impairments, ringing in the ears and 
dizziness might develop.

Thanks for the question.  Enjoy the rest of your summer :)

Florrie Surrette