Transverse acetabular ligament

The transverse acetabular ligament (transverse ligament^[1] or Tunstall's ligament^{[citation needed]}) bridges the acetabular notch, creating the a foramen (through which blood vessels and nerves pass into the joint cavity).^[2] The ligament is one of the sites of attachment of the ligament of head of femur.^{[1][3]: 789}

Transverse acetabular ligament
Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (Trans. ligament labeled at center.)
Details
Identifiers
Latin	ligamentum transversum acetabuli
TA98	A03.6.07.009
TA2	1881
FMA	43518
Anatomical terminology [edit on Wikidata]

Some sources consider the transverse acetabular ligament as the part of the acetabular labrum over the acetabular notch,^{[1][4][3]: 786} while another states that the labrum attaches onto the ligament.^[2]