dural part of filum terminale
Definition: the threadlike termination of the spinal dura mater, surrounding and fused to the filum terminale of the cord, and attached to the deep dorsal sacrococcygeal ligament; extends from S2–3 to Co2 vertebral levels.
Synonym(s): coccygeal ligament, filum terminale externum, filum durae matris spinalis, filum of spinal dura mater
See Also: terminal filum
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