Which middle-ear bone transmits vibrations between the malleus and stapes?

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Multiple Choice

Which middle-ear bone transmits vibrations between the malleus and stapes?

Explanation:
The middle-ear ossicles form a tiny lever system that passes sound from the eardrum to the inner ear. The malleus (hammer) picks up vibrations from the eardrum and transfers them to the bone sitting between it and the stapes. That middle bone is the incus (anvil), which then passes the motion on to the stapes (stirrup) to drive movement at the oval window of the cochlea. So the incus is the bone that transmits vibrations between the malleus and the stapes. The stapes is the next in line, the malleus is the one connected to the eardrum, and the pinna is external ear, not a middle-ear bone.

The middle-ear ossicles form a tiny lever system that passes sound from the eardrum to the inner ear. The malleus (hammer) picks up vibrations from the eardrum and transfers them to the bone sitting between it and the stapes. That middle bone is the incus (anvil), which then passes the motion on to the stapes (stirrup) to drive movement at the oval window of the cochlea. So the incus is the bone that transmits vibrations between the malleus and the stapes. The stapes is the next in line, the malleus is the one connected to the eardrum, and the pinna is external ear, not a middle-ear bone.

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