Anterior Compartment of Forearm

1. FRONT
OF
FOREARM

2. INTRODUCTION

3. CUTANEOUS INNERVATION OF
FOREARM

4. COMPARTMENTS OF FOREARM
• Forearm Two Compartments
• Anterior (flexor) Compartment
• Posterior (extensor) compartment
• Invested by deep fascia Attached to olecranon
& post. Border of ulna
• Sending no. of septa Deep fascia –thichened
to form Fexor and Extensor Retnaculum close
to wrist to retain digital tendons in position.

5. MUSCLES OF FRONT OF
FOREARM
• SUPERFICIAL GROUP (5)
From lateral to medial:
1. Pronator teres (PT)
2. Flexor carpi radialis (FCR)
3. Palmaris longus (PL) (may be absent)
4. Flexor digitorum superficialis FDS)
5. Flexor carpi ulnaris (FCU)
• DEEP GROUP (3)
1. Flexor pollicis longus (FPL)
2. Flexor digitorum profundus (FDP
3. Pronator quadratus (PQ)

6. SUPERFICIAL GROUP

7. PRONATOR TERES

8. FLEXOR CARPI RADILAIS

9. PALMARIS LONGUS

10. FLEXOR DIGITORUM
SUPERFICIALIS

11. FLEXOR CARPI ULNARIS

12. DEEP GROUP MUSCLES

13. FLEXOR POLLICIS LONGUS

14. FLEXOR DIGITORUM PROFUNDUS

15. PRONATOR QUADRATUS

16. NERVE SUPPLY OF FOREARM

17. ARTERIAL SUPPLY OF FOREARM

18. VENOUS DRAINAGE

19. APPLIED ANATOMY
• Nerve damage
• Volkmaan’s ischemic contracture
• Dupytren’s Contracture
• Hammer thumb