Dictionary of Human Evolution and Biology

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1. generally, the end of a long bone; that part of a long bone that articulates with adjacent bones; in vertebrae the epiphyses are the superior and inferior surfaces of the vertebral body. Plural: epiphyses. Epiphyses (in mammals) are adjacent to an epiphyseal disk, which serves as a zone of growth. Epiphyses are composed of a thin layer of compact bone surrounding red marrow-filled cancellous bone.

Cf. diaphysis.

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