1 – Pronator quadratus; 2 – Flexor digitorum profundus; 3 – Flexor digitorum superficialis; 4 – Flexor retinaculum; 5 – Common flexor sheath; 6 – Tendinous sheaths of digits of hand; 7 – Tendinous sheath of flexor pollicis longus; 8 – Flexor pollicis brevis; 9 – Tendinous sheath
of flexor carpi radialis
