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Extensor Digitorum Brevis Muscle Anatomy: Origin, Insertion, Action, Innervation

Extensor Digitorum Brevis Muscle Anatomy Study

Extensor Digitorum Brevis Anatomy
Origin: Anterior, superolateral surface of the calcaneus, in front of the lateral groove for peroneus brevis, from the interosseous talocalcaneal ligament, and from the stem of the inferior extensor retinaculum.
Insertion: Lateral sides of the tendons of extensor digitorum longus for the second, third, and fourth toes.
Action: Extension of the four lateral toes
Innervation: Deep peroneal nerve (L5, S1)
Blood Supply: Dorsalis pedis artery

For more information see:  Extensor Digitorum Brevis Muscle Pain: Ball of the Foot

 

Primary Actions of the Extensor Digitorum Brevis:

    1. Extension of the second, third, and fourth toes at the proximal interphalangeal joints.
      • Agonists: Extensor digitorum longus
      • Antagonists: Flexor digitorum longus and flexor digitorum brevis
    2. Extension of the second, third, and fourth toes at the distal  interphalangeal  joints.
      • Agonists: Extensor digitorum longus
      • Antagonist: Flexor digitorum longus, flexor digitorum brevis
    3. Assists with extension of the second, third and fourth toes at the metatarsophalangeal joints.

 


Anatomy Books
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McMinn’s Color Atlas of Foot and Ankle Anatomy is a very good foot anatomy for students who need more than the very basics. The book filled with images including x-rays, images of the anatomy with cadavers, and live human models. I recommend this book not only to students but to medical professionals for the clear anatomical photos that are useful with patients. I also highly recommend this book for to massage therapists, personal and athletic trainers as it helps you develop the mind’s eye view of the soft tissues and bones that you will be treating. Also available in a Kindle Edition.

McMinn’s Color Atlas of Foot and Ankle Anatomy [Kindle Edition]


Musculoskeletal Anatomy Flashcards

Musculoskeletal Flashcards

Are you a student or professional therapist who needs to brush up on the musculoskeletal system? Dr. Joseph E. Muscolino DC has developed a comprehensive set of flashcards that will help develop a mind’s picture of exactly where the muscles lie under the skin. A highly recommended study aid!


References:

The Trigger Point Therapy Workbook – Claire Davies, Amber Davies, and David G. Simons

Basic Clinical Massage Therapy: Integrating Anatomy and Treatment – James H. Clay and David M. Pounds

Trigger Point Therapy for Myofascial Pain – Donna Finando and Steven Finando

Massage Therapy Principles and Practice – Susan Salvo

Theory & Practice of Therapeutic Massage – Mark Beck

 

 

 

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