File:The American journal of anatomy (1901) (14784031072).jpg

Identifier: americanjournalo02wist (find matches)
Title: The American journal of anatomy
Year: 1901 (1900s)
Authors: Wistar Institute of Anatomy and Biology Association of American Anatomists
Subjects: Anatomy Anatomy
Publisher: Baltimore, MD : (s.n.)
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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s. In theproximal third, as a rule, a very slight amount of adipose tissue ispresent in the form of a few groups of fat cells, forming an imperfectperipheral layer, especially on the ventral side. Adipose tissue is neveientirely absent. The cavernous tissue in this region is composed oftypical irregular venous spaces, separated by fibrous trabeculge in whichthe smaller arteries enter. The cavernous tissue diifers from that of 76 Corpora Cavernosa in the Domestic Cat the corpns sponfriosnni in the greater irreguhirity in the shape of thevenons spaces, and the more frequent anastomoses of the spaces witheach other. Longitudinal sections show also that the spaces in generalare not extended in a longitudinal direction as they are in the corpusspongiosum. In the crura, the amount of adipose tissue again in-creases slightly, forming usually a thin, imperfect peripheral layer(Fig. G). At the proximal extremity the cavernous tissue of the crurais often very largely replaced hy adipose tissue.
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Fig. 4. Cross-sectiou of penis of a cat through base of glans, vessels uninjected.X 3.5. 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

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