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.
MUSCLES OF FRONT OF FOREARM SUPERFICIAL GROUP (5) From lateral to medial: Pronator teres (PT) Flexor carpi radialis (FCR) Palmaris longus (PL) (may be absent) Flexor digitorum superficialis FDS) Flexor carpi ulnaris (FCU) DEEP GROUP (3) Flexor pollicis longus (FPL) Flexor digitorum profundus (FDP Pronator quadratus (PQ)
Superficial group
Pronator teres
Flexor carpi radilais
Palmaris longus
Flexor digitorum superficialis
Flexor carpi ulnaris
Deep group muscles
Flexor pollicis longus
Flexor digitorum profundus
Pronator quadratus
Nerve supply of forearm
Arterial supply of forearm
Venous drainage
Applied anatomy Nerv e damage Volkmaan’s ischemic contracture Dupytren’s Contracture Hammer thumb