. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. AIR-TUBES AJSTD LARYNX 287 (comp. p. 285). In all other Mammals the thyroid is unpaired, though still showing traces of its primary paired nature, and it becomes. Fig. 233.—Diagram to Illustrate the Metamorphosis durixg Develop- ment OP THE First to Fifth Visceral Skeletal Arches (I—V) ix Man. From the proximal end of the first arch (Meckel's cartilage) two of the auditory ossicles, the malleus and incus [mb and iii-) are represented as arising, p, pinna ; pr, mastoid process of skull. From thesecond arch (hyoid) arise


. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. AIR-TUBES AJSTD LARYNX 287 (comp. p. 285). In all other Mammals the thyroid is unpaired, though still showing traces of its primary paired nature, and it becomes. Fig. 233.—Diagram to Illustrate the Metamorphosis durixg Develop- ment OP THE First to Fifth Visceral Skeletal Arches (I—V) ix Man. From the proximal end of the first arch (Meckel's cartilage) two of the auditory ossicles, the malleus and incus [mb and iii-) are represented as arising, p, pinna ; pr, mastoid process of skull. From thesecond arch (hyoid) arise proximally the styloid process (), distally the anterior (lesser) cornu of the hyoid () and a portion of the basi-hyoid (). By far the greater portion of this arch becomes the stylo-hyoid ligament {). (Concerning the stapes {st) comp., p 101). The third (first branchial) arch gives rise to the greater part of the body {) and the posterior or greater cornu of the hyoid (). The fourth (second branchial) arch gives rise to the upper segment (th') of the thyroid cartilage, and the fifth (third branchial) to the lower one {th''). The arytenoid cartilage \ar) is probably a derivative of the fifth arch. Ir, cartilago triticea ; a; cricoid cartilage ; tr, trachea. separated from the hyoid: it is shield-shaped, and surrounds the lateral and ventral regions of the larynx, overlapping the cricoid. 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 Wiedersheim, Robert, 1848-1923; Parker, William Newton, 1857-1923. London, Macmillan


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomycomparative