Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . THE SCAPULAE AECH. 141 to the great toe (i), and three to the other toes (11, in, iv, T) ;their division is similar to that of the fingers, into base, body, and Fig. Under surface. head, but they are much shorterand flatter. The foot of man is distin-guished from the correspondingpart in the quadrumana by its ca-pability of being planted flat uponthe ground, and the strength ofthe base thus afforded; the paral-lelism and magnitude o
Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . THE SCAPULAE AECH. 141 to the great toe (i), and three to the other toes (11, in, iv, T) ;their division is similar to that of the fingers, into base, body, and Fig. Under surface. head, but they are much shorterand flatter. The foot of man is distin-guished from the correspondingpart in the quadrumana by its ca-pability of being planted flat uponthe ground, and the strength ofthe base thus afforded; the paral-lelism and magnitude of thegreat toe, the advanced positionof the astragalus, the backwardextension of the heel, the fixedcondition of the tarsus, thestrength of the metatarsal bones and those of the phalanges,form the distinctive differences between the foot of man andthat of monkeys : when we notice an ourang or chimpanseattempting to walk erect, the foot is seen resting on its outerside, the heel scarcely projecting, and they can only sustainthe erect position by supporting their hands upon some body. [§268*. The internal side of the foot is constructed as an arch,for lodging and protecting the blood vessels, nerves, and tendonsof the toes ; this arch likewise forms a spring by which suddenshocks are diminished, the elasticity of the tar
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1870
