What are the names of muscles on forearm?
The forearm is the region between the elbow joint and the wrist. Its muscles are arranged into two groups, based on their location and function.
Volar (anterior) forearm:
- Flexor Carpi Radialis: Flexes (bends) the wrist and hand towards the palm.
- Palmaris Longus: Flexes the wrist.
- Flexor Carpi Ulnaris: Flexes and deviates (moves from the midline) the wrist towards the ulnar (small finger) side.
- Flexor Digitorum Superficialis: Flexes the middle phalanges of fingers 2-5 (index to pinky finger).
- Flexor Digitorum Profundus: Flexes the distal (end) phalanges of all fingers.
- Flexor Pollicis Longus: Flexes the thumb at its interphalangeal joint (near the tip).
- Pronator Teres: Rotates the forearm to face the palm down (pronation).
Dorsal (posterior) forearm:
- Extensor Carpi Radialis Longus: Extends and deviates the wrist radially (towards the thumb).
- Extensor Carpi Radialis Brevis: Assists the Extensor Carpi Radialis Longus in wrist extension.
- Extensor Carpi Ulnaris: Extends and deviates the wrist ulnarly (toward the small finger side).
- Extensor Digitorum: Extends the fingers 2-5 at their proximal and distal interphalangeal joints.
- Extensor Indicis: Assists the Extensor Digitorum in extending the index finger.
- Abductor Pollicis Longus: Abducts the thumb (moves it away from the midline).
- Extensor Pollicis Brevis: Extends the thumb at the metacarpophalangeal joint.
- Extensor Pollicis Longus: Extends the thumb at the interphalangeal joint.
- Supinator: Rotates the forearm so the palm faces up (supination).
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