9) Hara et al operated on 4 patients spanning two generations of a Japanese family that exhibited fixation by a bony bar extending from the pyramidal process to the head of the stapes; in each case, there was a normal stapedius
tendon but with a monopod stapes superstructure.
For instance, in the ear of the 3D body, surgeons can 'isolate' stapes, the smallest bone in the human body, and even stapedius
, the smallest striated muscle measuring about one millimeter and view them from all directions.
The human body's smallest muscle is called the stapedius
, and it's located in the ear.
The facial nerve gives off branches to the stapedius
muscle and the chorda tympani prior to its extratemporal course.
In the primary cases, the stapedius
tendon was cut.
We excluded tenosynovial extra-articular chondromatosis--another entity that has been reported as synovial chondromatosis originating in the tenosynovial membranes (10)--in view of the absence of any involvement of the stapedius
and tensor tympani tendons.
This allows the surgeon to position the two short prongs, which accommodate the stapedius
We have been preserving the stapedius
tendon when possible, (3) which makes the incus more stable during prosthesis insertion and may help maintain the blood supply to the incus.
We know little about the etiology of hyperacusis other than that it involves a direct malfunction of the facial nerve; as a result, the stapedius
muscle is unable to dampen sound.
When the embryo is between 10 and 18 mm in length, the deep layer of the second mesenchymal lamina differentiates into the posterior digastric complex (the stapedius
muscle, the posterior belly of the digastric muscle, the digastric tendon, and the stylohyoid muscle).
The primary sign of cochlear injury is a decrease in hearing threshold on audiometry, stapedius
reflex testing, or otoacoustic emissions testing.
tendon is intact, inferior to the stapes are the round window niche and round window membrane.