File:Image from page 681 of "On the anatomy of vertebrates (electronic resource)" (1866) (14750672662).jpg

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Identifier: b20416039_003 Title: On the anatomy of vertebrates [electronic resource] Year: 1866 (1860s) Authors: Owen, Richard, 1804-1892 Subjects: Anatomy, Comparative Vertebrates Fishes Reptiles Mammals Birds Publisher: London : Longmans, Green Contributing Library: Wellcome Library Digitizing Sponsor: Wellcome Library


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Text Appearing Before Image: Male organs, Horse. 666 ANATOMY OF. VERTEBRATES. also a pair of 4 retractores arising from the os coccygis, fig. 522,p, q, passing on each side the sphincter ani, r, then converging torim together along the urethral side of the penis, .9, to the base ofthe prepuce. In the castrate horse these usually degenerate intoelastic sclerous tissue. § 378. In Artiodact/jla.—The male organs of the Suidm arechiefly remarkable for the enormous development of the Cow- 523

Text Appearing After Image: Protometra, &c. of the Ass. ccxxxiv. perian glands. The testes are perineal: the scrotum slightlyprojects ; it is not pendulous. The vesicular glands are large,lobulated, with parenchymatous walls, their ducts terminate dis-tinctly from those of the testes. The prostates are small, nearthe cervix of the vesicular The muscular part of the urethrais of great length and the Cowperian glands are co-extendedtherewith : each presents an elongate sub trihedral form, investedby a muscular capsule; the glandular parietes are very thick: MALE ORGANS OF ARTIODACTYLA. the terminal duct opens beyond a transverse valvular fold sepa-rating the bulbous from the muscular part of the urethral canal.The penis shows a sigmoid flexure, and has a pair of retractores,arising from the hollow of the caudal end of the sacrum, andinserted at the end ofthe bend next the glans.This is triquetral, elon-gate and pointed. Thespongy part of the ure-thra, between glans andbulb, is reduced to afew veins. The prepu-


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Source Image from page 681 of "On the anatomy of vertebrates [electronic resource]" (1866)
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