. Animal biology; Human biology. Parts II & III of First course in biology. Biology. 132 ANIMAL BIOLOGY five separate bones in the palm. Do any of the frog's fingers have three joints ? Compare also tJie leg of man and the hind leg of the frog (Figs. 253 and 399). Does the thigh have one bone in each ? The shank of man has two bones, shin and splint .bone. Do you see a groove near the end in the shank bone of a frog (Fig. 252), in- dicating that it was formed by the union of a shin and FIG. 253. — SKELETON OF FROG. v i, •> -ru splint bone ? The first two of the five bones of the ankle a
. Animal biology; Human biology. Parts II & III of First course in biology. Biology. 132 ANIMAL BIOLOGY five separate bones in the palm. Do any of the frog's fingers have three joints ? Compare also tJie leg of man and the hind leg of the frog (Figs. 253 and 399). Does the thigh have one bone in each ? The shank of man has two bones, shin and splint .bone. Do you see a groove near the end in the shank bone of a frog (Fig. 252), in- dicating that it was formed by the union of a shin and FIG. 253. — SKELETON OF FROG. v i, •> -ru splint bone ? The first two of the five bones of the ankle are elongated, giv- ing the hind leg the appearance of having an extra joint (Fig. 253). The foot consists of six digits, one of which, like the thumb on the fore limb, is rudimentary. The five developed toes give the five digits of the typical verte- brate foot. Besides the five bones cor- responding to the instep, the toes have two, three, or four bones each. How is the hind foot specialized for swim- ming? Which joint of the leg con- tains most muscle? (Fig. 254.) Find other bones of the frog analogous in position and similar in form to bones in the human Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bailey, L. H. (Liberty Hyde), 1858-1954. New York, The Macmillan Co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1910
