Flexor Digitorum Superficialis (FDS)

Authors
Affiliations

Nathaniel Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Muscle Origin Insertion Innervation Action
Flexor digitorum superficialis

Origin

  • Humeral-ulnar head: Medial epicondyle of humerus, Coronoid process of Ulna1
  • Radial head: Proximal half of anterior border of radius1

Insertion

Sides of Middle Phalanges of digit 2-51

Innervation

Median N. (C8, T1)1

Action

  • Elbow: Weak Flexion1
  • Wrist: Flexion1
  • MCP & PIP 2-5: Flexion1

Examination

FDS Test

References

1.
Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

Citation

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