What is the epitympanic recess?

What is the epitympanic recess?

The epitympanic recess is an excavation in the dorsal (tegmental) wall, where the auditory ossicles are located. In the rostral (carotid) wall of the tympanic cavity begins the auditory tube which connects the middle ear with the nasopharynx.

What is Prussak’s space?

Prussak space is a subcomponent of the lateral epitympanic space and extends from the level of the scutum to the umbo. This space is best demonstrated on the oblique coronal image.

What is in the Epitympanum?

The epitympanum contains the head of the malleus, from which three ligamental folds arise: the anterior, posterior, and lateral malleal folds. It also contains the body and short process of the incus, from which the posterior incudal ligament and the membranous lateral incudomalleal fold arise (Fig. 144.3).

What is pars tensa pars flaccida?

You could also imagine the pars tensa to be similar to a drum surface. It is the portion of the eardrum responsible for translating sound waves into mechanical movement. The pars flaccida, as the name suggests, is less “taut” and also thicker. It drapes across the superior portion of the malleus.

What is the epitympanum?

Epitympanum. The epitympanum is a middle ear space that lies superior and medial to the tympanic rim. It is a critical area for cholesteatoma occurrence and contains many complex structures that determine middle ear ventilation patterns and also present significant challenges for cholesteatoma excision.

What is the clinical significance of the mastoid air cells?

The mastoid air cells are thought to protect the delicate structures of the ear, regulate ear pressure and possibly protect the temporal bone during trauma. When the mastoid cells become infected or inflamed, often as a result of an unresolved middle ear infection (otitis media), mastoiditis can develop.

What is Otomastoiditis?

Mastoiditis is an infection of the bony air cells in the mastoid bone, located just behind the ear. It is rarely seen today because of the use of antibiotics to treat ear infections. This child has noticeable swelling and redness behind his right ear because of mastoiditis.

Is tensor tympani control rare?

Voluntary control over the tensor tympani muscle is an extremely rare event. However, an understanding of the potential audiometric effects of its contraction could aid the diagnosis of hearing disorders.

Can you rumble your ears?

If not, you probably know someone who can do a weird thing with some part of their body. Well, apparently there are some people who can produce a low, thunder-like rumble in their ears on command. This is done by contracting their tensor tympani – a small muscle located above the auditory tube in their ear.

What does Flaccida mean?

droopy {adj.} flaccida (also: flaccido, cascante) flabby {adj.}

What is Tympanomastoid?

Tympanomastoid exploration refers to a surgical procedure carried out to remove part or all of the mastoid bone as well as opening up the middle ear to be able to remove infection. Most commonly, your child will require this surgery due to a pocket of skin cells called a cholesteatoma.

What is Scutum ear?

The term scutum derives from the Latin word for shield: the scutum in the ear is a sharp bony spur formed by the superior wall of the external auditory canal and the lateral wall of the tympanic cavity.

Are mastoid air cells normal?

Concomitantly with growth, air cells develop in the normal mastoid by a process termed “pneumatization.” This process is governed by vital and anatomic factors, the influence of which causes each mastoid to attain an individual cell pattern which differs from that of its mate and is sufficiently characteristic for …

Is mastoiditis serious?

Mastoiditis is a serious infection and should be diagnosed and treated quickly with antibiotics. You may need to go to hospital so antibiotics can be given directly into a vein through a drip (intravenously). In some cases, surgery may be needed to either: drain the middle ear (a myringotomy)