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Extensor Digitorum Brevis

Last updated on Wednesday, June 17 2009 by blondarb

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Muscle Name: extensor digitorum brevis

AKA:  musculus extensor digitorum brevis

Abbreviation: EDB

Spinal Nerve Roots:
    L4
    L5
    S1
Plexus:
    lumbosacral plexus

Named Nerves:
    deep peroneal nerve

    common peroneal nerve

    sciatic nerve

Proximal Attachment:  calcaneus

Distal Attachment:  proximal dorsal region of phalanges 2, 3 & 4

Action: Extension of digits 2 through 4

Needle Insertion: On the dorsolateral aspect of the foot approximately 1-2 centimeters distal to the lateral malleolus.

Activation for EMG:  Have the patient extend their toes.

Pitfalls: 

Notes:  

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