Tensor tympani muscle

The tensor tympani muscle (Latin for " release of the eardrum " ) is one of the two middle ear muscles. The stapedius is the other dar.

It rises to the cartilage of the Eustachian tube ( auditory tube ) through the tube opening ( ostium tympanic tubae auditivae ) runs through the front floor of the canal musculotubarius and sets the hammer handle on ( manubrium mallei ). The innervation via the vagus musculi tensor tympani branch of the medial pterygoid nerve from the mandibular nerve, the third branch ( V3) of the trigeminal nerve.

The tensor tympani muscle pulls the malleus medially thereby biasing the eardrum. By this voltage while the reflection of the sound is like the acoustic reflex reinforced at the eardrum and passed less sound energy to the ossicular chain, a contraction of the muscle is not caused by high sound pressure levels. A contraction of the muscle, however, can trigger by blowing against the eye in terms of a startle response.