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LE Muscles
Muscles of the Hip, Knee, Ankle, & Foot
Muscle | Action | Nerve Supply | Spinal 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 |