dorsal sacrococcygeus muscle

dor·sal sa·cro·coc·cyg·e·us mus·cle

an 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

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