Structures

  • Flexor carpi ulnaris
  • Flexor carpi radialis
  • Flexor digitorum superficialis
  • Flexor digitorum profundus
  • Flexor pollicis longus
MuscleActionOriginInsertionInnervationBlood supply
Flexor carpi ulnaris- Flexion of wrist
- Adduction of wrist
- Humeral head: medial epicondyle of humerus
- Ulnar head: olecranon and posterior border of ulna
- Pisiform bone
- Hook of hamate bone
- 5th metacarpal base
- Ulnar nerve: C7,8- Ulnar artery
Flexor carpi radialis- Flexion of wrist
- Abduction of wrist
- medial epicondyle of humerus- 2nd and 3rd metacarpal base- Median nerve: C6,7- Ulnar artery
Flexor digitorum superficialis- Flexion of proximal interphalangeal joints of digits 2-5
- Flexion of metacarpophalangeal joints of digits 2-5
- Flexion of the wrist
- Humero-ulnar head: medial epicondyle of humerus, ulna collateral ligament and coronoid process of ulna.
- Radial head: proximal half of border of radius
- Four tendons attach to the palmar surface of the middle phalanges of digits 2-5- Median nerve: C7,8, T1- ulnar artery
Flexor digitorum profundus- Flexion of distal interphalangeal joints of digits 2-5
- Flexion of metacarpophalangeal joints of digits 2-5
- Flexion of the wrist
- Medial and anterior ulna and interosseous membrane- Four tendons attach to the palmar surface of the distal phalanges of digits 2-5- Lateral half: median nerve (anterior interosseous nerve)
- Medial half: ulnar nerve: C8,T1
- ulnar artery
- anterior interosseous artery
Flexor pollicis longus- Flexion of interphalangeal joint of thumb- anterior surface of radius
- Radial half of interosseous membrane
- palmar surface of base of distal phalanx of thumb- Median nerve (anterior interrosseous nerve): C7,8 - anterior interosseous artery