<P> In humans and other land animals the middle ear ( like the ear canal ) is normally filled with air . Unlike the open ear canal , however , the air of the middle ear is not in direct contact with the atmosphere outside the body . The Eustachian tube connects from the chamber of the middle ear to the back of the nasopharynx . </P>
<P> In humans and other land animals the middle ear ( like the ear canal ) is normally filled with air . Unlike the open ear canal , however , the air of the middle ear is not in direct contact with the atmosphere outside the body . The Eustachian tube connects from the chamber of the middle ear to the back of the nasopharynx . </P>
what is the relationship between the eustachian tube and the pharynx
what is the relationship between the eustachian tube and the pharynx
connects from the chamber of the middle ear to the back of the nasopharynx
connects from the chamber of the middle ear to the back of the nasopharynx