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Encyclopedia > Tensor tympani

The tensor tympani muscle arises from the auditory tube and inserts onto the handle of the malleus, damping down vibration in the ossicles and so reducing the amplitude of sounds. It is supplied by the medial pterygoid nerve from the mandibular nerve (V). The malleus is hammer-shaped small bone or ossicle of the middle ear which connects with the incus and is attached to the inner surface of the eardrum. ... See Oscillator (disambiguation) for particular types of oscillation and oscillators. ... The ossicles (also called auditory ossicles) are the three smallest bones in the human body. ... Amplitude is a nonnegative scalar measure of a waves magnitude of oscillation. ... The mandibular nerve is the third branch (V3) of the trigeminal nerve. ...


  Results from FactBites:
 
X. The Organs of the Senses and the Common Integument. 1d. 3. The Auditory Ossicles. Gray, Henry. 1918. Anatomy of the ... (1910 words)
The vestibular surface and the circumference of the base of the stapes are covered with hyaline cartilage; that encircling the base is attached to the margin of the fenestra vestibuli by a fibrous ring, the annular ligament of the base of the stapes (lig.
The Tensor tympani, the larger, is contained in the bony canal above the osseous portion of the auditory tube, from which it is separated by the septum canalis musculotubarii.
The Tensor tympani is supplied by a branch from the mandibular through the otic ganglion, and the Stapedius by a branch from the facial.
  More results at FactBites »


 

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