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Flexor digitorum superficialis muscle

flexor digitorum superficialis muscle, flexor digitorum superficialis muscle exercises
Flexor digitorum superficialis flexor digitorum sublimis is an extrinsic flexor muscle of the fingers at the proximal interphalangeal joints

It is in the anterior compartment of the forearm It is sometimes considered to be the deepest part of the superficial layer of this compartment,12 and sometimes considered to be a distinct, "intermediate layer" of this compartment3 It is relatively common for the Flexor digitorum superficialis to be missing from the little finger, bilaterally and unilaterally, which can cause problems when diagnosing a little finger injury4

Contents

  • 1 Structure
    • 11 Innervation
  • 2 Function
  • 3 Additional images
  • 4 References
  • 5 External links

Structureedit

The muscle has two classically described heads - the humeroulnar and radial - and it is between these heads that the median nerve and ulnar artery pass The ulnar collateral ligament of elbow joint gives its origin to part of this muscle

Four long tendons come off this muscle near the wrist and travel through the carpal tunnel formed by the flexor retinaculum These tendons, along with those of flexor digitorum profundus, are enclosed by a common flexor sheath The tendons attach to the anterior margins on the bases of the intermediate phalanges of the four fingers These tendons have a split Camper's Chiasm at the end of them through which the tendons of flexor digitorum profundus pass

Innervationedit

The Flexor digitorium superficialis muscle is innervated by the median nerve C7, C8, T15

Functionedit

The primary function of flexor digitorum superficialis is flexion of the middle phalanges of the fingers at the proximal interphalangeal joints, however under continued action it also flexes the metacarpophalangeal joints and wrist joint

To test flexor digitorum superficialis, one finger is flexed at the proximal interphalangeal joint against resistance, while the remaining three fingers are held fully extended to inactivate flexor digitorum profundus

Additional imagesedit

Referencesedit

  1. ^ MedicalMnemonicscom: 273 1117
  2. ^ "Dissector Answers - Forearm & Wrist" Retrieved 2008-01-17 
  3. ^ "uamsedu" Retrieved 2008-01-17 
  4. ^ "J Hand Surg Eur" Retrieved 2011-02-06 
  5. ^ Lutsky KF, Giang EL, Matzon JL January 2015 "Flexor tendon injury, repair and rehabilitation" Orthopedic Clinics of North America 46 1: 67–76 PMID 25435036 doi:101016/jocl201409004 

External linksedit

  • Illustration: upper-body/flexor-digitorum-superficialis from The Department of Radiology at the University of Washington

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Flexor digitorum superficialis muscle Information about

Flexor digitorum superficialis muscle


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    Flexor digitorum superficialis muscle beatiful post thanks!

    29.10.2014


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