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image: Flexor Digitorum Superficialis
Flexor Digitorum Superficialis

Flexor Digitorum Superficialis

 Articulations :

 Action :

  • Flexes middle phalanges at proximal interphalangeal joints of medial four digits.
  • Acting more strongly, it also flexes proximal phalanges at metacarpophalangeal joints and hand

Origin :

  • Humoulnar head: Medial epicondyle of humerus
  • ulnar collateral ligament and coronoid process of ulna.
  • Radial head: Superior half of anterior border of radius.

Insertion :

  • Bodies of middle phalanges of medial four digits.

Innervation :

  • Median nerve (C7, C8 and T1).

Arterial Supply :

  • Ulnar artery.

Depth :

  • Superficial
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