Flexor Digitorum Superficialis

Description

Illustration of FDS

Cross section of the wrist highlighting FDS and FDP

Alternative Names

• Flexor Digitorum Superficialis (FDS)
• Flexor Digitorum Sublimis
• Superficial Flexor of the Fingers
• Common Superficial Flexor of the Fingers
• Superficial Digital Flexor

Origin

• Humeroulnar Head
  • Medial epicondyle of Humerus and Coronoid Process of Ulna
• Radial Head
  • Proximal half of anterior Radius

Insertion

• Lateral aspects of middle phalanges of fingers 2-5

Actions

• Flexion of metacarpophalangeal and proximal interphalangeal joints of digits 2-5

Vascular Supply

• Ulnar Artery
• Radial Artery
• Median Artery

Nerve

• Median Nerve (C8-T1)

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Clinical Significance

• Carpal Tunnel Syndrome
• Medial Epicondylitis
• Flexor Digitorum Superficialis and Profundus Injection

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See Also

• Physical Exam Hand
• Hand Pain (Main)
• Physical Exam Wrist
• Wrist Pain (Main)
• Hand And Wrist Anatomy

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