G. Supinator radii longus muscle.
H. Aponeurosis of the tendon of the biceps muscle.
I. Pronator teres muscle.
K. Flexor carpi ulnaris muscle.
L. Flexor carpi radialis muscle.
M. Palmaris longus muscle.
N. Radial artery, at its middle, with the radial nerve on its outer side.
O. Flexor digitorum sublimis.
P. Flexor pollicis longus.
Q. Median nerve.