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Muscles of the Hip, Knee, Ankle, & Foot

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Muscle
Action
Nerve Supply
Spinal Segment
Adductor Brevis   Hip flexion/adduction/internal rotation   Obturator   L2-L5  
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Adductor Longus   Hip flexion/adduction/internal rotation   Obturator   L2-L5  
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Adductor Magnus   Hip adduction/internal rotation   Obturator/Sciatic   L2-L4  
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Biceps Femoris   Hip extension/external rotation   Sciatic   L2-L4  
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Dorsal Interossei   Toe abduction/flexion   Tibial (lateral plantar branch)   L5-S2  
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Extensor Digitorum Brevis   Toe extension   Deep fibular   S2-S3  
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Extensor Digitorum Longus   Dorsiflexion/eversion/toe extension   Deep fibular   S1-S2  
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Extensor Hallucis Longus   Dorsiflexion/inversion/toe extension   Deep fibular   L5-S1  
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Flexor Digiti Minimi Brevis   Toe flexion   Tibial (medial plantar branch)   L5-S1  
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Flexor Digitorum Brevis   Toe flexion   Tibial (medial plantar branch)   S2-S3  
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Flexor Digitorum Longus   Plantar flexion/inversion/toe flexion   Tibial   S2-S3  
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Flexor Hallucis Brevis   Toe flexion   Tibial (medial plantar branch)   S2-S3  
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Flexor Hallucis Longus   Plantar flexion/inversion/toe flexion   Tibial   S2-S3  
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Gastrocnemius   Plantar flexion/knee flexion   Tibial   S1-S2  
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Gemellus Inferior   Hip external rotation   Nerve to obturator internus   L5-S1  
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Gemellus Superior   Hip external rotation   Nerve to quadrtaus femoris   L5-S1  
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Gluteus Maximus   Hip extension/abduction/external rotation   Inferior gluteal   L5-S2  
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Gluteus Medius   Hip abduction/internal rotation   Superior gluteal   L5-S1  
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Gluteus Minimus   Hip abduction/internal rotation   Superior gluteal   L5-S1  
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Gracilis   Hip adduction/flexion/internal rotation   Obturator   L2-L3  
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Iliacus   Hip flexion   Femoral   L2-L3  
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Lumbricals   MTP toe flexion/IP toe extension   Tibial   S2-S3  
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Obturator Externus   Hip external rotation   Obturator   L3-L4  
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Obturator Internus   Hip external rotation   Nerve to obturator internus   L5-S1  
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Pectineus   Hip flexion/adduction/internal rotation   Femoral   L2-L3  
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Fibularis Brevis   Plantar flexion/eversion   Superficial fibular   L5-S2  
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Fibularis Longus   Plantar flexion/eversion   Superficial fibular   L5-S2  
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Fibularis Tertius   Dorsiflexion/eversion   Deep fibular   L5-S1  
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Piriformis   Hip external rotation   Anterior rami of S1, S2   L5-S2  
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Plantar Interossei   Toe adduction/flexion   Tibial (lateral plantar branch)   S2-S3  
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Plantaris   Plantar flexion/ knee flexion   Tibial   S1-S2  
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Popliteus   Knee flexion   Tibial   L4-S1  
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Psoas   Hip flexion   Anterior rami of lumbar nerves   L1-L3  
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Quadratus Femoris   Hip external rotation   Nerve to quadratus femoris   L5-S1  
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Rectus Femoris   Hip flexion/knee extension   Femoral   L2-L4  
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Sartorius   Hip flexion/abduction/external rotation   Femoral   L2-L3  
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Semimembranosus   Hip extension/internal rotation   Sciatic   L5-S2  
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Semitendinosus   Hip extension/internal rotation   Sciatic   L5-S2  
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Soleus   Plantar flexion   Tibial   S1-S2  
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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  
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Tibialis Anterior   Dorsiflexion/inversion   Deep fibular   L4-L5  
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Tibialis Posterior   Plantar flexion/inversion   Tibial   L4-L5  
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Vastus Intermedius   Knee extension   Femoral   L2-L4  
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Vastus Lateralis   Knee extension   Femoral   L2-L4  
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Vastus Medialis   Knee extension   Femoral   L2-L4  
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Abductor Digiti Minimi   Toe abduction   Tibial (lateral plantar branch)   S2-S3  
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Abductor Hallucis   Toe abduction/toe flexion   Tibial (medial plantar branch)   S2-S3  
🗑


   

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Created by: jvlassov
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