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The smallest bone in the human body is the stapes bone which is located in the ear.

The smallest bone in the human body is the stapes bone which is located in the ear.

The stapes or stirrup is a bone in the middle ear of humans and other mammals which is involved in the conduction of sound vibrations to the inner ear. The stirrup-shaped small bone is on and transmits these to the oval window, medially. The stapes is the smallest and lightest named bone in the human body, and is so-called because of its resemblance to a stirrup.

The stapes is the third bone of the three ossicles in the middle ear. The stapes is a stirrup-shaped bone, and the smallest in the human body. It rests on the oval window, to which it is connected by an annular ligament. The stapes is described as having a base, resting on the oval window, as well as a head that articulates with the incus. These are connected by anterior and posterior limbs. The stapes articulates with the incus through the incudostapedial joint.The stapes is the smallest bone in the human body, and measures roughly 3 x 2.5mm, greater along the head-base span.


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