The word pollicis refers to the thumb and so the flexor pollicis longus is the long muscle which flexes the thumb!
- Origin – Middle anterior surface of the radius.
- Insertion – Base of the distal phalanx of the thumb.
- Actions – Flexion of the thumb.
Flexion of the wrist. - Innervation – Anterior interosseous nerve.
- Daily uses – Gripping something tightly.
- Example strengthening exercises – Wrist flexion using a dumbbell.
- Example stretches – Wrist flexor stretch.
- Related muscles – Extensor pollicis longus. Flexor digitorum superficialis.