Anatomy, Shoulder and Upper Limb, Hand Flexor Digitorum Superficialis Muscle

Book
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan.
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Excerpt

The flexor digitorum superficialis (FDS), formerly known as the flexor digitorum sublimis, is the largest of the extrinsic flexors of the forearm (see Image. Flexor Digitorum Superficialis). It forms the intermediate muscle layer between the superficial and deep muscle groups of the forearm. It contains four digital components, with a tendon that inserts onto each corresponding finger. The flexor digitorum superficialis is the primary flexor of the proximal interphalangeal (PIP) joints of the middle phalanges, but it also assists in flexion of the metacarpophalangeal (MCP) joints.

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