There are multiple definitions:

1. thick ascending limb(English)

   • TGF

2. transverse atlantal ligament(English)

   • C1-C2, MRI, OO
   • Anatomy, Spine (or spinal cord)
   • https://doi.org…ajns.AJNS_35_19

3. Achilles tendon lengthening(English)

   • as a treatment for spastic ankle equinus during gait
   • Gait/walking, Orthopedics
   • http://pubmed.n…h.gov/16789444/