. Animal biology. Zoology; Biology. 162 METAZOAN PHYLA distributed to the internal structures of the body and to the surface, particularly to the head, which is the most sensitive region. Since the Oyar/ Yolk glands Oviduct Uterus. Geniivjl atrium vagina Testes Yasa efferentia Vas deferens Prostate gland Seminal vesicle Cirrus Genital pore Fig. 79.—Reproductive system of a planarian. Somewhat diagrammatic. (From Parker and Haswell, "Text-book of Zoology," after Jijima and Hatschek, by the courtesy of The Macmillan Company.) The male organs are shown on the right side of the median li
. Animal biology. Zoology; Biology. 162 METAZOAN PHYLA distributed to the internal structures of the body and to the surface, particularly to the head, which is the most sensitive region. Since the Oyar/ Yolk glands Oviduct Uterus. Geniivjl atrium vagina Testes Yasa efferentia Vas deferens Prostate gland Seminal vesicle Cirrus Genital pore Fig. 79.—Reproductive system of a planarian. Somewhat diagrammatic. (From Parker and Haswell, "Text-book of Zoology," after Jijima and Hatschek, by the courtesy of The Macmillan Company.) The male organs are shown on the right side of the median line, the female organs on the left, each being omitted on the opposite side. ganglia have connective tissue sheaths which more or less protect them, they may be recognized as simple organs. The peripheral nerves also have similar sheaths. The reproductive system (Fig. 79) is the most complex of all and most fully justifies the term system. The male organs consist of numerous spherical testes, which are masses of cells lying in the parenchyma. To. 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.
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