93 Flexor digitorum superficialis
![](img/model2/no_93arm.png)
Origin:
Humero-ulnar head - Medial epicondyle of humerus (common flexor origin) and coronoid process of ulna
Radial head - Superior half of anterior radius
Insertion:
Shafts of middle phalanges of medial four digits
Blood Supply:
Ulnar and radial arteries
Innervation:
Median nerve (C7, C8, T1)
Main Action:
Flexes middle and proximal phalanges of medial four digits, also flexes hand (at wrist)