Stapedius Muscle Picture
The stapedius is the smallest striated muscle in the
human body. At just over one millimeter in length, its purpose is to
stabilize the smallest bone in the body, the stapes. It prevents excess
movement by the stapes, helping to control the conduction of sound waves
from the external environment to the inner ear. Paralysis of the
stapedius allows wider oscillation of the stapes, resulting in
heightened reaction of the auditory ossicles to sound vibration. Loud
noises become deafening. In the picture it is the tiny muscle circled.
Click on the image above to see the full sized
picture.
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