what are the functions this bony structure serves?
It transmits sound vibrations from the incus to the oval window, a membrane-covered opening to the inner ear.
Function
Situated between the incus and the inner ear, the stapes transmits sound vibrations from the incus to the oval window, a membrane-covered opening to the inner ear. 
what are the 3 smallest bones in the human body Strapes is one of them what is the size of this above bone? Roughly 3 x 2.5mm which part of the body is this located? Middle ear of humans besides the human, is this bony structure present in other living species in the animal kingdom? It is one of three ossicles in mammals, in non-mammalian four-legged animals its homologous form is called the columella
Transport sound vibrations from the incus to the oval window. It transmits sound vibrations from the incus to the oval window, a membrane-covered opening to the inner ear, it also stabilized by the stapedius muscle, which is innervated by the facial nerve It transmits sound vibrations from the incus to the oval window.
Stapes Stapes Stapes
Function Function Function
Situated between the incus and the inner ear, the stapes transmits sound vibrations from the incus to the oval window, a membrane-covered opening to the inner ear. The stapes is also stabilized by the stapedius muscle, which is innervated by the facial nerve. Situated between the incus and the inner ear, the stapes transmits sound vibrations from the incus to the oval window, a membrane-covered opening to the inner ear. The stapes is also stabilized by the stapedius muscle, which is innervated by the facial nerve. Situated between the incus and the inner ear, the stapes transmits sound vibrations from the incus to the oval window, a membrane-covered opening to the inner ear. The stapes is also stabilized by the stapedius muscle, which is innervated by the facial nerve.
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Stapes [SEP] Function
Situated between the incus and the inner ear, the stapes transmits sound vibrations from the incus to the oval window, a membrane-covered opening to the inner ear. The stapes is also stabilized by the stapedius muscle, which is innervated by the facial nerve.