Beginners' zoology . Fig. 2S5. —Leg BonesOF Bird. middlejoints, hasandouter toe has the Fig. 286. —Skeleton of Bird. Rh, vertebra; CI, clavicle; Co, coracoid; Sc, scap-ula; Si, sternum; H, humerus; R, radius; U,ulna; /», thumb; ^jr,femur; 7, tibia. See Fig. : Which is the stifiest portion of thevertebral column ? How are the ribs braced againsteach other ? Which is longer, thigh bone or shin ?Compare shoulder blade with mans (Fig. 399). Whichis the extra shoulder bone ? Compare tail vertebraewith those of extinct bird. Fig. 290. joints (Fig. 285),Is the thigh of a bird bare orfea
Beginners' zoology . Fig. 2S5. —Leg BonesOF Bird. middlejoints, hasandouter toe has the Fig. 286. —Skeleton of Bird. Rh, vertebra; CI, clavicle; Co, coracoid; Sc, scap-ula; Si, sternum; H, humerus; R, radius; U,ulna; /», thumb; ^jr,femur; 7, tibia. See Fig. : Which is the stifiest portion of thevertebral column ? How are the ribs braced againsteach other ? Which is longer, thigh bone or shin ?Compare shoulder blade with mans (Fig. 399). Whichis the extra shoulder bone ? Compare tail vertebraewith those of extinct bird. Fig. 290. joints (Fig. 285),Is the thigh of a bird bare orfeathered} The shin} Where is the anklejoint of a bird .<* Dor you see the remains of another bone (thesplint bone, or fibula)on the shin bone ofthe (Fig. 285or 286.) Why wouldseveral joints in theankle be a disadvan-tage to a bird 1 BIRDS 153 The tJiigh hardly projects beyond the skin of the trunk,as may be noticed in a plucked fowl. The thigh extendsforward from the hip joint (Figs. 286, 299
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1921
