. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. 66 COMPARATIVE MORPHOLOGY OF VERTEBRATES. into close connection with the elements derived from the cartilage skull, in some cases replacing considerable of it. The cartilage bones arise by an ossification of the cartilage. Even in the sturgeons the chondrocranium is complete, the membrane bones being superficial and not intimately connected with the deeper parts. The names of the bones are largely based on the term- inology of human anatomy. In many cases what appears as a single bone in the human skull is repr
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates -- Anatomy. 66 COMPARATIVE MORPHOLOGY OF VERTEBRATES. into close connection with the elements derived from the cartilage skull, in some cases replacing considerable of it. The cartilage bones arise by an ossification of the cartilage. Even in the sturgeons the chondrocranium is complete, the membrane bones being superficial and not intimately connected with the deeper parts. The names of the bones are largely based on the term- inology of human anatomy. In many cases what appears as a single bone in the human skull is represented by several bones in the young and in the lower vertebrates. In these cases the bones in the lower forms are usually given names which indicate their relation to the human bones or to the part or region in which they occur. Dermal bones are apparently the older, phylogenetically, but for convenience the cartilage bones are considered FIG. 65.—Vomer of 25 mm. A mblystoma larva, after Hertwig, showing the bone developed by the fusion of the bases of teeth. The chondrocranium shows several centres of ossification, but only those giving rise to distinct bones are considered The bones of. 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 Kingsley, J. S. (John Sterling), 1854-1929. Philadelphia, P. Blakiston's son & co.
Size: 2009px × 1244px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1912