← Human Kines-Acetabulo-Femoral Joint Muscle Actions Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Flexion Primary-Illiacus,Psoas Major,Rectus Femoris,Pectineus,Tensor Fascia latae. Extension Primary- Gluteus Maximus, Biceps Femoris(long head), Semimemranosus, Semitendinosus. ABduction Primary- Gluteus Medius, Gluteus Minimus. ADduction Primary-Pectineus, Gracillis, Adductor Magnus, Adductor Longus, Adductor Brevis. Medial Rotation Primary-Tensor Fascia latae, Gluteus Minimus. Lateral Rotation Primary- Gluteus Maximus,(6 lateral rotators - Piriformis, Inferior Gemellus, Superior Gemellus, Oburator, Internus, Obturator Externus, Quadratus Femoris.)