. Animal physiology. Physiology, Comparative; Physiology, Comparative. 54 GENERAL STRUCTURE OF VERTEBRATA. organs of nutrition, which are unequally disposed on the two sides: thus, the heart and stomach are on the left side, the liver on the right, and the lungs much larger on the right side than on the left. 63. In all Vertebrated animals, the skeleton is internal; and consists of bones, which are capable of growing, and of being reproduced after injury, like any other part of the living tissue ; beino- copiously supplied with blood-vessels, which penetrate into their interior. These bones gi
. Animal physiology. Physiology, Comparative; Physiology, Comparative. 54 GENERAL STRUCTURE OF VERTEBRATA. organs of nutrition, which are unequally disposed on the two sides: thus, the heart and stomach are on the left side, the liver on the right, and the lungs much larger on the right side than on the left. 63. In all Vertebrated animals, the skeleton is internal; and consists of bones, which are capable of growing, and of being reproduced after injury, like any other part of the living tissue ; beino- copiously supplied with blood-vessels, which penetrate into their interior. These bones give support, and afford points of attachment, to the soft parts, in the limbs (where they exist) as well 'as in the trunk ; but the former are not unfrequently wanting, as in Ser- pents ; and we must look in the trunk, therefore, for that peculiar arrange- ment, which is characteristic of this division of the Animal Kingdom. The back-bone, as it is commonly termed, is found in all Yertebrated animals; though in a few among them (the lowest Fishes) it is very imperfect. It consists of seve- ral pieces jointed together, so as to fig. 4,-Skeleton of the Ostrich. possess great flex- ibility ; whilst they are so firmly connected by ligaments, that they cannot easily be torn asunder or displaced. The number of these pieces varies considerably; in Man there are only 33 ; but in many Serpents there are several hundred. Each of them. 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 Carpenter, William Benjamin, 1813-1885. London : Wm. S. Orr and Co.
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