. Animal physiology. Physiology, Comparative. GENERAL STRUCTURE OP ARTICULATA. 103 and the ganglia tliemselves are composed of two halves, which have little connexion with each other. The chain thus formed (fig. 43) passes along the nnder-side of the trunk of the animal (as seen at g, fig. 44), not on what seems its back; and by the presence of tliis double chain of ganglia an Articulated animal may be distin- guished, even when, in its general structure, it should seem to belong to the group of Mollusca (§ 102). 95. The general arrangement of the organs in the Articulata is shown in the accom
. Animal physiology. Physiology, Comparative. GENERAL STRUCTURE OP ARTICULATA. 103 and the ganglia tliemselves are composed of two halves, which have little connexion with each other. The chain thus formed (fig. 43) passes along the nnder-side of the trunk of the animal (as seen at g, fig. 44), not on what seems its back; and by the presence of tliis double chain of ganglia an Articulated animal may be distin- guished, even when, in its general structure, it should seem to belong to the group of Mollusca (§ 102). 95. The general arrangement of the organs in the Articulata is shown in the accompanying figure of a Cray- fish. The mouth, situated on a pro- jecting head, opens into s, the stomach, from which passes backwards the in- testinal tube, i, i, to terminate at the opposite extremity of the body. Tlie upper part of the tube is surrounded by the liver, /, which is here very large. In the head are seen the ganglia, c; and along the under-side of the body is seen the chain of ganglia,. Fig. 43. -Nervous System AN 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 : H. G. Bohn
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Keywords: ., bookauthorcarpente, bookcentury1800, bookdecade1850, bookyear1859
