Attic Tympanic Membrane

It consists of three layers from external to internal.

Attic tympanic membrane.

Some authors define three compartments 4. The attic is just above the eardrum. At the center of the concavity the deepest point is called the umbo. Left tympanic membrane showing attic perforation.

A tympanic membrane perforation can have many causes. The head of the club lies in a cavity of the middle ear above the tympanic membrane the attic where it is suspended by a ligament from the bone that forms the covering of the brain. The retracted segment of eardrum is often known as a retraction pocket. The tympanic cavity is subdivided into several parts defined in relation to the planes of the tympanic membrane.

Tympanic membrane perforations a perforation is a hole in the tympanic membrane that is visible through the otoscope. The terms atelectasis or sometimes adhesive otitis media. Epitympanum attic epitympanic recess superior to the membrane. The posterior and superior parts of the tympanic membrane are most commonly affected.

It also serves as the lateral wall of the tympanic cavity separating it from the external auditory canal. The tympanic membrane is shaped like a flat cone pointing into the middle and inner ear. It attaches to an incomplete ring of bone along the wall of the eac the tympanic annulus. In other cases frequent ear infections can cause a tympanic membrane perforation.

While this is rare it is seen from time to time. Impact of site and size pars tensa tympanic membrane. Tympanic membrane also called eardrum thin layer of tissue in the human ear that receives sound vibrations from the outer air and transmits them to the auditory ossicles which are tiny bones in the tympanic middle ear cavity. Here the head articulates with the incus which is cone shaped with the base of the cone articulating with the head of the malleus also in the attic.

Hypotympanum inferior to the membrane. In people who have had ear tubes tympanostomy tubes a perforation can result when the eardrum does not close up after the tube comes out. Ppt c s o m clinical features powerpoint ation viktor s notes middle ear disorders impact of site and size pars tensa tympanic membrane unit five tympanic membrane perforations chronic suppurative ois media csom a middle ear mucosal. The eardrum comprises two parts the pars tensa which is the main part of the eardrum and the pars flaccida which is a smaller part of the eardrum located above the pars tensa.

Mesotympanum directly medial to the membrane. Tympanic membrane retraction describes a condition in which a part of the eardrum lies deeper within the ear than its normal position.