释义 |
DictionarySeesacrumos sacrum
sa·crum, pl. sa·cra (sā'krŭm, sā'kră), [TA] The segment of the vertebral column forming part of the pelvis; a broad, slightly curved, spade-shaped bone, thick above, thinner below, closing in the pelvic girdle posteriorly; it is formed by the fusion of five originally separate sacral vertebrae; it articulates with the last lumbar vertebra, the coccyx, and the hip bone on either side. Synonym(s): os sacrum [TA], sacred bone, vertebra magna [L. (lit. sacred bone), neuter of sacer (sacr-), sacred] |