Aditus to mastoid antrum

Aditus to mastoid antrum is a part of the human anatomy specifically located in the ear. It is a canal that connects the mastoid antrum, a cavity in the mastoid process of the temporal bone, to the middle ear.

Anatomy

The aditus to mastoid antrum is a narrow, oblique channel. It is located posteriorly to the tympanic cavity, and superiorly to the mastoid cells. The aditus allows for air to pass between the middle ear and the mastoid antrum, which is crucial for the proper functioning of the ear.

Function

The primary function of the aditus to mastoid antrum is to facilitate the exchange of air between the middle ear and the mastoid antrum. This air exchange is essential for maintaining equal air pressure on both sides of the tympanic membrane, or eardrum, which is necessary for normal hearing.

Clinical significance

Infections in the middle ear, such as otitis media, can spread to the mastoid antrum through the aditus. This can lead to mastoiditis, a serious infection of the mastoid process. Symptoms of mastoiditis include pain, swelling, and redness over the mastoid process, as well as possible hearing loss. Treatment typically involves antibiotics, and in severe cases, surgery may be required to remove the infected mastoid cells.

See also

• Mastoid process
• Middle ear
• Otitis media
• Mastoiditis