174 HUMAN PHYSIOLOGY CHAP. 



BONES OF THE TRUNK. 



Ribs, 7 pairs true ; 3 pairs false ; and 2 



pairs floating 24 



Cervical vertebrae of neck .... 7 

 Dorsal vertebrae of back .....12 



Lumbar vertebrae of loins 5 



Sternum, or breast bone I 



Hyoid at base of tongue i 



Hip bone, one on either side .... 2 



Sacrum, below lumbar vertebrae ... i 



Coccyx, at end of vertebral column . . i 



54 

 BONES OF THE EXTREMITIES. 



The Two Upper: 



Scapula, shoulder blade 2 



Clavicle, or collar bone 2 



Humerus, in upper arm 2 



Radius, in forearm 2 



Ulna, in forearm 2 



Carpal, in wrist 16 



Metacarpal, in palm 10 



Phalanges, in fingers 28 



64 



The Two Lower : 



Femur, or thigh bone 2 



Tibia, or shin bone 2 



Fibula, in calf 2 



Patella, at knee 2 



Tarsal, in ankle ........ 14 



Metatarsal, in instep to 



Phalanges, in toes .28 



60 



124 



206 



126. Composition of Bone. Bones are made of hard 

 and firm material so as to make them strong. They 

 contain mineral matter, lime and potasJi mostly. In the 



