File:On the anatomy of vertebrates (electronic resource) (1866) (14770840733).jpg

Identifier: b20416039_003 (find matches)
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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, in Leporidce) within the abdomen. Besides Cowperianthere are prostatic and vesi-cular glands, usually large:but, again, the Leporidceshow their exceptional cha-racter in the Order by theabsence of the latter. Inthe Hare (Lepus timidus)the testes make a more con-spicuous prominence thanin other Rodents, in theirscrotal bags, one on each sidethe cloacal vent, fig. 505, a.The tunica vaginalis retainsan opening wide enough forthe repassage of the testisinto the abdomen, but itadheres to the bottom of thesac, the serous membraneof which is there reflectedby a fold upon the epididy-mis, fig. 505, h, i, and be-ginning of the vas deferens, ib. p, q. The testes, f, g, in thisfigure, have been dissected from the scrotum and tunica vaginalis.The epididymis is extended beyond the testis, as at h, i, beforebeing reduced and reflected as 6 vas deferens: the sperm-ductsenlarge at their termination between the urinary, e, and protome-tral, r/, bladders, into the latter of which they open, very near
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mm Male organs. are. cxxir 650 ANATOMY OF VERTEBRATES. its communication with the urethra. The protometra,1 d, has thinwalls, except at its terminal neck, where it seems thickened by theadhesion of prostatic follicles, opening by distinct ducts into theurethra. The Cowperian glands lie at the sides of the musculartract of the urethra, and open into it. The penis is short, consistingchiefly of a pyramidal pointed glans; it is exposed at b, in itsprepuce, which opens into the subanal fossa, a, into which thepreputial or ano-preputial glands, k, I, exude their firm sebaceoussecretion. The e erectores penis arise from both pubis andischium, and are inserted chiefly into the outer side of the i cruracorporis cavernosi: the * levator penis arises from the symphysispubis, and is inserted into the glans by a small tendon, passingalong the dorsum penis, over the convex bend, which it straightenswhen the penis is extended in erection. The Rabbit differs fromthe Hare chiefly in the larger relati

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