Flexor Pollicis Longus
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 resistance bands.
Example stretches
- Wrist flexor stretch.
Related muscles
- Extensor pollicis longus.
- Flexor digitorum superficialis.
