方形骨
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Meanings
1
quadrate bone
Anatomical term for a bone in the skull of many vertebrates, including birds, reptiles, and amphibians. In humans, it is a small bone in the middle ear (incus).
See also: 方骨
The quadrate bone is a bone found in the skulls of reptiles and birds.
In mammals, the quadrate bone is homologous to the incus, one of the auditory ossicles.