| 释义 |
枕骨zhěngǔ构成颅腔底部与后部的骨头,在头部后面正下方,底部有一孔,是脑与脊髓连接的地方,孔外有两块卵圆形突起,与第一颈椎构成关节,使头部可以俯仰活动。{occipital bone; saucer-shaped bone that forms the back part of the skull and part of its base, located right beneath the rear part of the head, with a hole at its bottom, serving to join the brain and spinal cord, and two oval projections outside the hole, forming the joint of the first cervical vertebra upon which the head can move up and down} |