The common frog . c—-\ k. Fig. 87. Fig. 88. Fig. 85.—Diagram representing; the primitive aortc arches of Mammas and Saii-ropsidans (after H. Rathkf-). n, common trunk, or root, of the aorta ; /, b, thetwo branches into which it divid- s, and which give off the successive arches i, , 4, and 5, which end in c, c, two vessels which again unite to form d, the de-scending, or dorsal, aorta. Fig. 86.—Diagram representing the vessels and aortic arches of a Lizard, with thechanges induced on the primitive condition (after H. Rathke). a, a, internalcarotids : b, b, external carotids ; c, c, c jmmon
The common frog . c—-\ k. Fig. 87. Fig. 88. Fig. 85.—Diagram representing; the primitive aortc arches of Mammas and Saii-ropsidans (after H. Rathkf-). n, common trunk, or root, of the aorta ; /, b, thetwo branches into which it divid- s, and which give off the successive arches i, , 4, and 5, which end in c, c, two vessels which again unite to form d, the de-scending, or dorsal, aorta. Fig. 86.—Diagram representing the vessels and aortic arches of a Lizard, with thechanges induced on the primitive condition (after H. Rathke). a, a, internalcarotids : b, b, external carotids ; c, c, c jmmon carotids ; d, d, anastomosis be-tween the interna! carotids and the secondary aortic arches : e, e. right mamaortic arch ; /, /, the subclavian arteries (which give oft the vertebral, here notrepresented); g. commencement of the great dorsal aorta ; /, h, left main aorticarch ; ?, /, i, arteries ; k, k, rudiments of the first (right and left)aortic arches—Nos. 5, 5, of Fig. 85. Fig. 87.—Diagram represen
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondo, bookyear1874
