20 



PLATE X 



MUSCLES 



A Abductor pollicis. 



B Flexor brevis pollicis, outer head. 



C Adductor transversus pollicis. 



D First dorsal interosseous (abductor 



indicis). 

 E Lumbricales. 

 F Abductor minimi digiti. 

 6 Flexor brevis minimi digiti. 

 H Opponens or flexor ossis metacarpi 



minimi digiti. 

 I Flexor carpi ulnaris. 

 K Flexor sublimis digitorum tendons : ii. 



middle, iii. ring, iv. little finger. 

 L Flexor profundus digitorum. 



M Palmaris longus. 



N Flexor carpi radialis. 



Supinator longus. 



P Extensor ossis metacarpi pollicis. 



Q Extensor primi internodii pollicia. 



R Pronator quadratus. 



S Vaginal portion of sheath of flexor 



tendons. 



8' Crucial portion of sheath. 

 T Vinculum accessorium longum. 

 V Arch formed by deep prolongation of 



the palmar fascia. 

 X Annular ligament. 

 Z Pisiform bone. 



VESSELS 



a Kadial artery. 

 b Superficialis volaa. 

 c, Ulnar artery. 

 d Deep branch of ulnar. 

 e Digital branches of the superficial 

 palmar arch. 



/ Eadialis indicis. 



g Princeps pollicis. 



h Interosseous branches of the deep arch 



joining the digital at their point of 



bifurcation. 



NERVES 



1 Median. 



2 Palmar cutaneous of median. 



3 Digital branches of median. 



4 Branch to muscles of thumb. 



6 Branches to outer two lumbricales. 



6 Ulnar. 



7 Deep branch of ulnar. 



8 Digital branches of ulnar. 



9 Communication between ulnar 



median. 



and 



