Zone 3 of the gastrosoleus complex corresponds to which structure?

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Multiple Choice

Zone 3 of the gastrosoleus complex corresponds to which structure?

Explanation:
Zone 3 targets the tendon portion of the gastrosoleus complex—the Achilles tendon itself. This is the distal, consolidated tendon formed by the gastrocnemius and soleus that inserts on the calcaneus. The other structures sit in different parts of the complex: the gastrocnemius muscle belly is the proximal, fleshy part (not zone 3), the myotendinous junction lies between muscle and tendon (often considered zone 2), and the plantaris tendon is a small accessory structure that runs separately and is not the main component of zone 3.

Zone 3 targets the tendon portion of the gastrosoleus complex—the Achilles tendon itself. This is the distal, consolidated tendon formed by the gastrocnemius and soleus that inserts on the calcaneus. The other structures sit in different parts of the complex: the gastrocnemius muscle belly is the proximal, fleshy part (not zone 3), the myotendinous junction lies between muscle and tendon (often considered zone 2), and the plantaris tendon is a small accessory structure that runs separately and is not the main component of zone 3.

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