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M. opponens digiti minimi (foot)
Small toe opponor, lies deeper than flexor digiti minimi. Variety: can often be absent, is regarded by various authors as a splitting off of the flexor digiti minimi brevis muscle.
Origin: Lig. plantare longum and tendon sheath of the fibularis longus muscle
Insertion: plantar at the Os metatarsale V
Innervation: Nervus plantaris lateralis, a branch of nervus tibialis
Antagonists:
Movement: Plantar flexion of the lesser toe, tension of the longitudinal arch of the foot