. The American journal of anatomy. Fig. 4. Cross-sectiou of penis of a cat through base of glans, vessels Stained with osmic acid, ep, epidermis; dp, deep venous plexus; A, tunicaalbuginea; S, septum; CC, corpus cavernosum; ur, urethra, in corpus spongiosum. The corpus spongiosum, it should he noted, contains only the typicalcavernous tissue of that region. In the peripheral portion of the bulb,however, adipose tissue is occasionally found (cf. Fig. 6). The presence of adipose tissue in the corpora cavernosa as previouslydescribed is fairly constant, although the extent of it
. The American journal of anatomy. Fig. 4. Cross-sectiou of penis of a cat through base of glans, vessels Stained with osmic acid, ep, epidermis; dp, deep venous plexus; A, tunicaalbuginea; S, septum; CC, corpus cavernosum; ur, urethra, in corpus spongiosum. The corpus spongiosum, it should he noted, contains only the typicalcavernous tissue of that region. In the peripheral portion of the bulb,however, adipose tissue is occasionally found (cf. Fig. 6). The presence of adipose tissue in the corpora cavernosa as previouslydescribed is fairly constant, although the extent of its developmentvaries somewhat in individual cases. Sometimes the adipose tissue ispresent in larger amount than indicated, and occasionally it is less welldeveloped. The variation apparently does not depend upon the age ofthe animal, except during the first few weeks after birth. At birth,there is no trace of adipose tissue in the corpora cavernosa, which con- C. ]\[. Jackson. ii^kiSmJi^ sist at this time of compact embryonal fibrous tissue, in wliich thecavernous spaces are beginning to develop, especially toward the prox-imal end. The adipose tissue evidently appears shortly after birth,however, for it was found well developed in several instances in kittensonly a few weeks old. There is no evidence to indicate that the adi-pose tissue is formedby a degeneration ofcavernous or othertissue. Both caver-nous and adipose tis-sue evidently developdirectly from em-bryonal connectivetissue, the adiposeappearing at a slight-ly later date thanthe cavernous have not had anopportunity to makeextensive investiga-tion of the condi-tions in other ani-mals, but have ex-amined several speci-mens of the penis ofthe dog, sheep, , and man. Withthe exception of thelast, adipose tissuewas found in gTeateror less amount inthe corpora caver-nosa of all the fore-going animals. In all r-isp« linwovPT- cq in adTadiposetissueof corpus cavernosum ; ur, urethra, in
Size: 2720px × 919px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1901
