. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. 218 ANATOMY OF VERTEBUATES. Ill. system of converging fibres takes its origin from the scapula itself, and converges to an insertion close to that of the preceding. The entire mass of the muscles 22 and 11 antagonise that, 16, ica, below ; one raises, the other ^ji depjrcsses, and both rotate, '*'' the humerus to and fro. As the fore-limb gains size and power in higher air-breathers, the muscle 11 seeks a more extended origin, covers a greater proportion of the seg- mental system of trunk- muscles, acquires the name of l
. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. 218 ANATOMY OF VERTEBUATES. Ill. system of converging fibres takes its origin from the scapula itself, and converges to an insertion close to that of the preceding. The entire mass of the muscles 22 and 11 antagonise that, 16, ica, below ; one raises, the other ^ji depjrcsses, and both rotate, '*'' the humerus to and fro. As the fore-limb gains size and power in higher air-breathers, the muscle 11 seeks a more extended origin, covers a greater proportion of the seg- mental system of trunk- muscles, acquires the name of latissiinns dorsi, and, in Anthropotomy, is classed amongst the ' first layer of the muscles of the back.' The muscle 22, becomes deve- loped into ' supra- ' and ' in- fra-spinafus,^ and, perhaps, also deJ/o'idcs. The pro- tractor scajiiihp, arising, as in Fishes, from the paroccipital, now also derives fi1)rcs from the transverse processes of the first and second truidv-verte- bra;, and divides into two dis- tinct liisciculi; one, fig. 140, 19, is inserted into tlie base of the scapula ; the other, ib. 20, into the humeral end of that bone. A small strip, is, which tends more directly to raise the scapida, arises from the transverse proces- ses of the third vertebra : but tlie muscle, i;i, is tliat wliich l>est answers to the Irrtitor scapuhc of Mammals. Two. 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 Owen, Richard, 1804-1892; Cornell University. College of Veterinary Medicine. Flower-Sprecher Veterinary Library. fmo. London, Longmans, Green
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