. Animal biology. Zoology; Biology. Cephalic ganglion Excretory tubes Excretory pore Nerve cord Peripheral nerve. ABC Fig. 77.—Systems of a planarian. Somewhat diagrammatic. A, digestive system. B, excretory system. C, nervous system. {From Parker and Haswell, "Text-book of Zoology," after Jijima and Hatschek, by the courtesy of The Macmillan Company.) into that cavity for nearly its full length and at its outer end is entirely free. When protruded beyond the mouth opening, the pharynx forms a proboscis. The pharyngeal cavity leads into another cavity called an enteron^ though someti
. Animal biology. Zoology; Biology. Cephalic ganglion Excretory tubes Excretory pore Nerve cord Peripheral nerve. ABC Fig. 77.—Systems of a planarian. Somewhat diagrammatic. A, digestive system. B, excretory system. C, nervous system. {From Parker and Haswell, "Text-book of Zoology," after Jijima and Hatschek, by the courtesy of The Macmillan Company.) into that cavity for nearly its full length and at its outer end is entirely free. When protruded beyond the mouth opening, the pharynx forms a proboscis. The pharyngeal cavity leads into another cavity called an enteron^ though sometimes referred to as an intestine. This consists of three main trunks, one anterior and two posterior and lateral, each of which has a large number of blind extensions, the whole representing a very complicated gastravascular 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 Wolcott, Robert Henry, 1868-1934; University of Nebraska (Lincoln campus). Dept. of Zoology. New York ; London : McGraw-Hill Book Company, Inc.
Size: 879px × 2844px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology
