The class-book of anatomy : designed for schools, explanatory of the first principles of human mechanism, as the basis of physical education / by Jerome V.C. Smith.

  • Smith, Jerome Van Crowninshield, 1800-1879.
Date:
1834
Catalogue details

Licence: Public Domain Mark

Credit: The class-book of anatomy : designed for schools, explanatory of the first principles of human mechanism, as the basis of physical education / by Jerome V.C. Smith. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    Fi2. 52. Explanation of Fig. 22. By this diagram, the skeleton of the foot will be clearly under- stood, even without the aid of the hones. Twenty-six bones are here so curiously grouped together, that an arch is made between the heel and ball of the great toe : — a, shows the live bones of the metatarsus ; d, e,f, g, and h point out the five bonesof the instep or tarsus ; and 6, c, and i, indicate the phalanges or toes. to the top of the foot. On the under side, in the sole of the foot, all the flexor muscles of the toes are found. This structure conduces to the elasticity of the step, and the weight of the body is transmitted to the ground by the spring of the arch, in a way to prevent the injury of nu- merous organs, by a sudden jar. Each one of them has a specific name, viz. vs calcis, the heel; astragalus, being part of the ankle joint, named from its likeness to a block used by the Greeks, in playing a game of chance ; cuboides, or square bone ; naviculare, the boat shaped ; and cunei- forme, or the wedge shaped bone. As in the hand, between the instep and toes, is the metatarsus, in which are five bones, placed like the sticks of a fan, to be articulated with the first row of the bones of the toes. Precisely as the short blocks of bones are arranged in the thumb, so they are in the great toe, being, however, proportionably larger. There are two in this and three