Which muscle is responsible for flexing the little finger?

The muscle responsible for flexing the little finger is indeed the Flexor digiti minimi. This muscle specifically targets the little finger, facilitating its flexion at the metacarpophalangeal joint and to some extent at the proximal interphalangeal joint. This function is crucial for fine motor skills and gripping actions that involve the pinky.

Understanding the anatomy and functions of the muscles in the hand, particularly the intrinsic muscles, is essential for massage therapy as it allows a therapist to apply techniques that can enhance muscle function and relieve tension. The Flexor digiti minimi originates from the hamate bone and the flexor retinaculum, inserting into the base of the proximal phalanx of the little finger.

The other muscles listed either support different functions or act on different fingers. For instance, the Flexor carpi ulnaris primarily flexes and adducts the wrist, while the Extensor digiti minimi extends the little finger. The Abductor digiti minimi, although it is involved in the movement of the little finger, primarily functions to abduct the finger rather than flex it. Therefore, understanding the specific role of the Flexor digiti minimi clarifies why it is identified as the muscle responsible