All of the following structures are derived from the aponeurosis of the external oblique muscle except:
Pectineal ligament
Inguinal ligament
Lacunar ligament
Linea semilunaris
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: Gray's Anatomy 41st edition Pgno: 1045
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