Incudostapedial joint

Small joint between the incus and the stapes

The incudostapedial joint is a small, synovial ball-and-socket joint between the incus (anvil) and the stapes (stirrup). The joint's function is to transfer vibrations between the two ossicles. The incudostapedial joint lies between the long leg of the incus and the head of the stapes. The long leg moves with the rest of the incus, and a small knob, the lenticular process, articulates with the head of the stapes.

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