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What is the Mastoid Process and Function. The mastoid part of the temporal bone houses the mastoid process. Mastoid process is the bony prominence easily felt behind the earlobe.It is one of the key features of the lateral cranium. It is located behind and below the external auditory meatus.hese are cells are connected to the middle ear. Mastoid air cells are covered by mucoperitoneum that is continuous with the tympanic cavity and with the squamous part of the temporal bone [ 1 ]. The mastoid notch is located medial to the mastoid process.
Depending on the specific condition in patientâs ear, an operation on the mastoid bone to control infection may be done, together with a procedure to restore hearing. This procedure is called a tympanomastoidectomy. The mastoid is a honeycomb cavity in the temporal bone, which lies directly behind the ear and is connected to the middle ear space. When a hole arises in the eardrum due to previous injury or infection, or when a long-standing infection persists with tissue in the middle ear or mastoid, mastoid surgery often becomes necessary to alleviate this infection. This part of the procedure is called mastoidectomy. The procedure used to restore or retain hearing is called a tympanoplasty. âTympanumâ refers to the middle ear cavity; âplastyâ means ârepair ofâ; thus âtympanoplasty.â