Flexor Digitorum Superficialis Muscle

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** A muscle that originates in the humeroulnar and radial heads of the forearm and inserts in the middle phalanges of the second through fifth digits of the hand; it is primarily involved in the flexion of the fingers at the proximal interphalangeal joints and is supplied by the median nerve and the ulnar artery.

**Synonyms:** - FLEXOR DIGITORUM SUPERFICIALIS MUSCLE