某些哺乳动物的腿部起支撑作用的骨头，相当于人类手中的掌骨或足部的跖骨。
A supporting bone of the leg in some hoofed mammals, analogous to the metacarpus of the hand or the metatarsus of the foot in human beings.
某些哺乳动物的腿部起支撑作用的骨头，相当于人类手中的掌骨或足部的跖骨。
A supporting bone of the leg in some hoofed mammals, analogous to the metacarpus of the hand or the metatarsus of the foot in human beings.
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