<prompt> All of the following structures are derived from the aponeurosis of the external oblique muscle except:Pectineal ligamentInguinal ligamentLacunar ligamentLinea semilunaris  <response>: Linea semilunaris is derived from the aponneurosis of the internal oblique muscle. Ligaments derived from the external oblique aponeurosis are pectineal ligament, inguinal ligament, and lacunar ligament. Ref: Grays Anatomy 41st edition Pgno: 1045 