conjoint tendon
Last reviewed 01/2018
The conjoint tendon is the structure derived from fusion of the aponeuroses of the transversus abdominis and internal oblique muscles. On each side, it inserts into the pubic crest in continuity with the pectineal line. It forms the medial reinforcement to the posterior wall of the inguinal canal. It lies perpendicular to the lacunar ligament.