| 释义 |
dorsal sacrococcygeus muscle dor·sal sa·cro·coc·cyg·e·us mus·clean inconstant and poorly developed muscle on the dorsal surfaces of the sacrum and coccyx, the remains of a portion of the tail musculature of lower animals. Synonym(s): dorsal sacrococcygeal muscle, musculus extensor coccygis, musculus sacrococcygeus dorsalis, musculus sacrococcygeus posterior |