Attic Tympanic Membrane

Left tympanic membrane showing attic perforation.

Attic tympanic membrane. The terms atelectasis or sometimes adhesive otitis media. This section contains information on acute traumatic central marginal attic and total perforations along with information on the monomeric tympanic membrane. 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. The tympanic cavity is subdivided into several parts defined in relation to the planes of the 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. Hypotympanum inferior to the membrane. Epitympanum attic epitympanic recess superior to the membrane. Mesotympanum directly medial to the membrane.

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. 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. Impact of site and size pars tensa tympanic membrane. It also serves as the lateral wall of the tympanic cavity separating it from the external auditory canal.

Either or both of these parts may become retracted. Tympanic membrane perforations a perforation is a hole in the tympanic membrane that is visible through the otoscope. While this is rare it is seen from time to time. The attic is just above the eardrum.

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. It attaches to an incomplete ring of bone along the wall of the eac the tympanic annulus. The posterior and superior parts of the tympanic membrane are most commonly affected. In other cases frequent ear infections can cause a tympanic membrane perforation.

Tympanic membrane retraction describes a condition in which a part of the eardrum lies deeper within the ear than its normal position. If the cholesteatoma has been dry the cholesteatoma may present the appearance of wax over the attic. It consists of three layers from external to internal. The tympanic membrane is shaped like a flat cone pointing into the middle and inner ear.

At the center of the concavity the deepest point is called the umbo. Some authors define three compartments 4.