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Updated: 1/2/2022

Gastrocnemius

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  • Summary
      • Gastrocnemius 
      • Origin
      • Medial head: from posterior nonarticular surface of medial femoral condyle;
      • Lateral head: from lateral surface of femoral lateral condyle
      • Insertion
      • The two heads unite into a broad aponeurosis which eventually unites with the deep tendon of the soleus to form the Achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface
      • Action
      • Powerful plantar flexor of ankle
      • Innervation
      • Tibial nerve (S1, S2) 
      • Arterial supply
      • Each head supplied by a sural branch of the popliteal artery

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Flashcards (6)
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Private Note