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LE Muscles

Muscles of the Hip, Knee, Ankle, & Foot

MuscleActionNerve SupplySpinal Segment
Adductor Brevis Hip flexion/adduction/internal rotation Obturator L2-L5
Adductor Longus Hip flexion/adduction/internal rotation Obturator L2-L5
Adductor Magnus Hip adduction/internal rotation Obturator/Sciatic L2-L4
Biceps Femoris Hip extension/external rotation Sciatic L2-L4
Dorsal Interossei Toe abduction/flexion Tibial (lateral plantar branch) L5-S2
Extensor Digitorum Brevis Toe extension Deep fibular S2-S3
Extensor Digitorum Longus Dorsiflexion/eversion/toe extension Deep fibular S1-S2
Extensor Hallucis Longus Dorsiflexion/inversion/toe extension Deep fibular L5-S1
Flexor Digiti Minimi Brevis Toe flexion Tibial (medial plantar branch) L5-S1
Flexor Digitorum Brevis Toe flexion Tibial (medial plantar branch) S2-S3
Flexor Digitorum Longus Plantar flexion/inversion/toe flexion Tibial S2-S3
Flexor Hallucis Brevis Toe flexion Tibial (medial plantar branch) S2-S3
Flexor Hallucis Longus Plantar flexion/inversion/toe flexion Tibial S2-S3
Gastrocnemius Plantar flexion/knee flexion Tibial S1-S2
Gemellus Inferior Hip external rotation Nerve to obturator internus L5-S1
Gemellus Superior Hip external rotation Nerve to quadrtaus femoris L5-S1
Gluteus Maximus Hip extension/abduction/external rotation Inferior gluteal L5-S2
Gluteus Medius Hip abduction/internal rotation Superior gluteal L5-S1
Gluteus Minimus Hip abduction/internal rotation Superior gluteal L5-S1
Gracilis Hip adduction/flexion/internal rotation Obturator L2-L3
Iliacus Hip flexion Femoral L2-L3
Lumbricals MTP toe flexion/IP toe extension Tibial S2-S3
Obturator Externus Hip external rotation Obturator L3-L4
Obturator Internus Hip external rotation Nerve to obturator internus L5-S1
Pectineus Hip flexion/adduction/internal rotation Femoral L2-L3
Fibularis Brevis Plantar flexion/eversion Superficial fibular L5-S2
Fibularis Longus Plantar flexion/eversion Superficial fibular L5-S2
Fibularis Tertius Dorsiflexion/eversion Deep fibular L5-S1
Piriformis Hip external rotation Anterior rami of S1, S2 L5-S2
Plantar Interossei Toe adduction/flexion Tibial (lateral plantar branch) S2-S3
Plantaris Plantar flexion/ knee flexion Tibial S1-S2
Popliteus Knee flexion Tibial L4-S1
Psoas Hip flexion Anterior rami of lumbar nerves L1-L3
Quadratus Femoris Hip external rotation Nerve to quadratus femoris L5-S1
Rectus Femoris Hip flexion/knee extension Femoral L2-L4
Sartorius Hip flexion/abduction/external rotation Femoral L2-L3
Semimembranosus Hip extension/internal rotation Sciatic L5-S2
Semitendinosus Hip extension/internal rotation Sciatic L5-S2
Soleus Plantar flexion Tibial S1-S2
Tensor Fascia Latae Hip abduction/internal rotation; In 0-30 degrees of knee flexion also does knee extension; In 45-145 degrees of knee flexion also does knee flexion Superior gluteal L4-L5
Tibialis Anterior Dorsiflexion/inversion Deep fibular L4-L5
Tibialis Posterior Plantar flexion/inversion Tibial L4-L5
Vastus Intermedius Knee extension Femoral L2-L4
Vastus Lateralis Knee extension Femoral L2-L4
Vastus Medialis Knee extension Femoral L2-L4
Abductor Digiti Minimi Toe abduction Tibial (lateral plantar branch) S2-S3
Abductor Hallucis Toe abduction/toe flexion Tibial (medial plantar branch) S2-S3
Created by: jvlassov