74 



ANATOMY FOR NURSES 



[Chap. V 



Metacarpus, or body of hand. — Eacli metacarpus is formed 

 by five bones (ossa metacarpaliaj. The bones are curved longi- 

 tudinally, so as to be convex behind, and concave in front. They 

 articulate at their bases with the second row of carpal bones and 

 with each other. The heads of the bones articulate with the bases 

 of the first row of the phalanges. 



Phalanges, or digits. — They are the bones of the fingers ; 

 and are fourteen in number in each hand, three for each finger, 

 and two for the thumb. The first row articulates with the meta- 

 carpal bones and the second row of phalanges ; the second row, 

 with the first and third ; and the third, with the second row. 



BONES OF THE LOWER EXTREIVIITIES 



Hip bones (ossa coxa? or ossa innominata) . . 2 



Femur (thigh bone) 2 



Patella (knee-cap) 2 



Tibia (shin bone) 2) . 



Fibula (calf bone) 2) ^^ 



Tarsus (ankle, or root of foot) 14 



Metatarsus (sole and instep) 10 



Phalanges (toes) 28 



62 



^„,,.^_-^^ The bones of the lower ex- 



^/^^ ^^^x tremities correspond to a great 



^'' ^^ extent with those of the upper 



extremities, and bear a rough re- 

 l[i ( semblance to them, but are 



' heavier and more firmly knit 



together. 



Hip bone, or os coxae. — It is 

 a large, irregular-shaped bone, 

 ^*(»"*. TC? which, with its fellow of the op- 

 I IW'^ posite side, forms the sides and 

 ( %, front wall of the pelvic cavity. 



■^^^>..-i->^ ^" young subjects it consists of 



** three separate parts, and al- 



Fig. 53^- Development OF THE Hip though in the adult these have 

 UONE. bhowing the union of the three 

 portions in the acetabulum. (Gerrish.) become United, it is USUal to de- 



