n 4 THE UPPER EXTREMITY 



cover of it, and a little filament from the latter nerve should be traced into 

 its substance. The granular fat should next be removed from the palm, and 

 the dense palmar aponeurosis cleaned. Towards the roots of the fingers the 



Palmaris longus 

 Flexor carpi ulnaris 



Ulnar artery 



Lig. carpi transversum (O.T. 



Anterior annular ligament) 



Pisiform bone 



Palmaris longu 

 Palmaris brevi 



Abductor digiti quinti. 



Flexor digiti quint 

 brevis 



Palmar fascia 

 (intermediate part) 



4th lumbrical with 



digital artery and 



nerves 



3rd lumbrical with 



digital artery and 



nerves 



Transverse superficial 

 ligament 



Flexor sublimis 



Brachioradialis 

 Flexor carpi radialis 

 Radial artery 



Median nerve 



Abductor pollicis longus 

 Volar superficial artery 



Opponens pollicis 

 Abductor pollicis 



/l^ i_ Flexor pollicis brevis 

 \ \ \ 



ist lumbrical with 

 x digital nerve and 

 arteria radialis indicis 



nd lumbrical with digital 

 artery and nerves 



FIG. 45. Superficial Dissection of the Palm. The intermediate part of the 

 palmar aponeurosis has been left in position whilst the lateral and medial 

 portions have been removed to display the short muscles of the thumb 

 and little finger. 



digital vessels and nerves, together with the lumbrical muscles, appear in the 

 intervals between the slips into which the palmar aponeurosis divides. 

 These should be defined, and it will be seen that they pass distally under 

 cover of the superficial transverse ligament. Having noted this point, 



