312 



THE MUSCLES 



First Layer 



The first layer consists of four muscles — the pronator radii teres, flexor car})i 

 radialis, pahnaris longus, and flexor carpi ulnaris — which all arise by a common 



Fig. 272. — Fkoxt of the Foreakm : First Layer of Muscles. 



Triceps 



Brachialis anticus 



Pronator radii teres 



Flexor carpi radialis 



Palmaris longus 



Flexor carpi ulnaris 



Flexor sublimis digitorum 



Biceps 



Brachio-radialis 



- Flexor longus pollicis 



tendon froin the front of tlie internal condyle, and by separate attachments from 

 tlie deep fascia of tlie forearm and the intermuscular" septa; Avhile the innermost 

 and outermost have additional ori<>ins from the ulna. 



