BONES, MUSCLES, EXERCISE, AND REST. 



253 



behind, and support the toes in front. The great toe has two 

 bones, and each of the other toes has three bones, corre- 

 sponding to the bones in the thumb and fingers. 



FIG. XL. Bones of the Foot. 



a, 6, c, d, e, f, g> Bones of the ankle 

 joint. 



*, , Bones of the anterior part of the 

 foot. 



k, Great toe. 

 I, /, Other toes. 



602. The arch of the foot extends* from the heel to the 

 ball, (Fig. XLI.) The bones are exactly adapted to each 



FIG. XLI. Arch of tint Foot. (Side View.} 



a, Bone of the leg. d, d, Instep. 



6. Upper bone of the ankle. e, Great toe. 



c t Os calcis, or heel bone. 



other, and are held together by ligaments, very firmly, but 

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