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File:Hirudo medicinalis anatomy by Syme.png

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English: Hirudo medicinalis anatomy.
Figure 1 represents the internal structure of the leech, slightly magnified. At superior part we notice the piercers, improperly called the teeth, and the male and female organs of generation; at the inferior parts, the two last long cells or stomachs, and the intestine. The abdominal blood-vessel is seen taking a direction from the mouth to the anus, forming several diamond-shaped expansions in the course. We find on each side of the vessel, the cells or stomachs ranged in regular order. To the surface of each is attached a small oval-shaped body, forming a connection, the one with the other by means of a tortuous tube.
Figure 2 represents, under highly magnified form, the body of the male generative organ, with the penis hanging from its sheath. The uterus with the ovaria and the testes.
Figure 3 represents a dried preparation, shewing a few of the cells distended with common shot, and a portion of the intestine in which a slip of wood has been inserted.
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  • Johnson, J. R. A treatise on the medicinal leech including its medical and natural history, with a description of its anatomical structure/ also, remarks upon the diseases, preservation and management of leeches. London: Longman, Hurst, Rees, Orme, and Brown, 1816.
  • Reprint in the Harvard University Library (lib.harvard.edu)
Author Patrick Syme (1774–1845)

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current15:22, 25 December 2012Thumbnail for version as of 15:22, 25 December 2012750 × 1,149 (573 KB)Mithril (talk | contribs)=={{int:filedesc}}== {{Information | description = {{en|1=''Hirudo medicinalis'' anatomy. : '''Figure 1''' represents the internal structure of the leech, slightly magnified. At superior part we notice the piercers, improperly called the teeth, and the...

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