Identifier: cu31924003404161 Title: Outlines of zoology Year: 1916 (1910s) Authors: Thomson, J. Arthur (John Arthur), 1861-1933 Subjects: Zoology Publisher: New York, Appleton Contributing Library: Cornell University Library Digitizing Sponsor: MSN

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Text Appearing Before Image: n front of each kidney lies a yellow suprarenal body. Reproductive organs.—(a) Male.—The testes arise onthe dorsal abdominal wall near the kidney, but as therabbit becomes sexually mature, they are loosened fromtheir original attachment, and pass out on the ventralsurface, as if by a normal rupture, into the scrotal sac.A spermatic cord, consisting of an artery, a vein, and alittle connective tissue, runs from the abdornen to thetestis. The testis is attached to the base of the scrotal sac, andis bordered by a mass of convoluted tubes—the epididymis—consisting of the caput epididymis anteriorly, the largerCauda epididymis posteriorly, and a narrow band betweenthem. The cauda epididymis is connected to the scrotalsac by a short cord or gubernaculum. Through the tubes oflhe epididymis (the modified meso-nephros) the spermatozoa developed in the testis are 7i8 MAMMALIA. collected into the vas deferens (the modified Wolffianduct), which arises from the cauda epididymis, ascends to

Text Appearing After Image: Fig. 393. — Urogenital organs ofmale rabbit. A., Kidney ; 6., ureter ; Z^/., bladder ;7., tc-stis; s.c.^ spermatic cord ;cp.cp., caput epididymis; ca.ep.,Cauda epididymis; Sc, scrotalsac ; /■-, one of the lobes of theprostate; c.g.^ Covvpers glands;P-g-i ])erineal glands; 6V.,uretbra ; t:.t\, corpus ca\ernosum ;/., pL-iiis. Fig. 394.—Urogenital organs of female rabbit. A., Kidney; U,, ureter; O., ovary;/■./, Fallopian tube; O.d.., ovi-duct; Ui.., uterus; l., \agina;/>■/,, Ijladder: Ve., vestibule orfemale urethra; U.C, uro-genital aperture ; ^i., anus,Uladder aud vestibule are cut Opl^ll. the abdomen, loops round the ureter, and, passing dorsallyto the bladder, oi)ens beside its fellow into a median sac REPRODUCTIVE ORGANS. 719 called the uterus masculinus. In many Mammals,- paireddiverticula, known as seminal vesicles, are connected withthe ends of the vasa deferentia, but they are not developedin the rabbit. The uterus masculinus is the homologue of the vagina inthe fem

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