118 



THE SKELETON OF THE UPPER EXTREMITY 



Concavity of the carpus 



Sulcus carpi 



a 

 3 



o 

 oo 



IH 



a 

 



I 



h 

 o 

 -3 



a 

 c 



ti 



Tuberosity of the scaphoid bone 



Tuberculum ossis navicularis 



'Radial ridge of the carpus 

 'Eminentia carpi radialis Vs 

 Ridge or tuberosity of the trapezium 



Tuberculum ossis multanguli majoris* 



The carpus.. 



Carpus 



Sesamoid bones 

 Ossa sesamoidea K.;- 



Fhalanges of the thumb ("first finger") 

 Phalanges pollicis (digiti I.) 



_ Pisiform bone 

 Os pisiforme 



-^ *Ulnar ridge of the carpus 

 "* *Eminentia carpi ulnaris 

 Uncifonn process of the uncifonn 

 bone 



Hamulus ossis hamati 



The metacarpus 



Metacarpus 



Sesamoid bone 

 Os sesamoideum 



The fingers 



Di<'iti manus 



Phalanges of the little (fifth) finger 

 Phalanges digiti minimi (V.) 



Phalanges of the index (second) finger 



(or forefinger) 

 Phalanges indicis (digiti II.) 



Phalanges of the middle (third) finger 

 Phalanges digiti medii (III.) 



Phalanges of the ring (fourth) finger 

 Phalanges digiti annularis (IV.) 



a 



c 



o 

 bo 



It 

 



a 



h 



o 

 .a 



h 



a 

 a 



FIG. 277. PALMAR ASPECT OF THE SKELETON OF THE RIGHT HAND (FACIES VOLARIS). 



Skeleton manus The skeleton of the hand. 



