Anatomy A sesamoid bone is present in the tendon of which of the following muscles? A Flexor hallucis longus. B Extensor hallucis brevis. C Adductor hallucis D Flexor hallucis brevis 💡 Explanation A sesamoid bone is present in the tendon of which of the following muscles? ✓ Correct Answer: D. Flexor hallucis brevis