. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. STERNUM 73 tremes, the coracoids, as in Amphibians, come into direct connec- tion with the lateral edges of the sternum (Figs. 53, 56, and 103), and in other Mammals, the clavicles, when present, are connected with it directly or indirectly. The sternum is greatly developed in Birds, and consists of a broad, more or less fenestrated plate, provided in the vast majority of Carinata3 with a projecting keel, which forms an additional surface for the origin of the wing-muscles (Fig. 53). In contrast to these, the cursorial Ra
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. STERNUM 73 tremes, the coracoids, as in Amphibians, come into direct connec- tion with the lateral edges of the sternum (Figs. 53, 56, and 103), and in other Mammals, the clavicles, when present, are connected with it directly or indirectly. The sternum is greatly developed in Birds, and consists of a broad, more or less fenestrated plate, provided in the vast majority of Carinata3 with a projecting keel, which forms an additional surface for the origin of the wing-muscles (Fig. 53). In contrast to these, the cursorial Ratitse are characterised by a broad, more or less arched, shield-like sternum without a keel. In some flightless Carinatse, however, the keel is rudimentary or even absent, and the vestige of a keel may occur, though not constantly,. 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, W. N. (William Newton), d. 1923. London, Macmillan and co. , limited
Size: 1225px × 2041px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomycomparative
