. Anatomy, descriptive and applied. Anatomy. Fig. 1162.—Diagram of the arteries of the penis. (Testut.) The blood from the cavernous spaces is returned by a series of vessels, some of which emerge in considerable numbers from the base of the glans penis and converge on the dorsum of the organ to form the deep dorsal vein; others pass out on the upper surface of the corpora cavernosa and join the dorsal vein; some emerge from the under surface of the corpora cavernosa, and, receiving branches from the corpus spongiosum, wind around the sides of the penis to ter- minate in the dorsal vein; but t
. Anatomy, descriptive and applied. Anatomy. Fig. 1162.—Diagram of the arteries of the penis. (Testut.) The blood from the cavernous spaces is returned by a series of vessels, some of which emerge in considerable numbers from the base of the glans penis and converge on the dorsum of the organ to form the deep dorsal vein; others pass out on the upper surface of the corpora cavernosa and join the dorsal vein; some emerge from the under surface of the corpora cavernosa, and, receiving branches from the corpus spongiosum, wind around the sides of the penis to ter- minate in the dorsal vein; but the greater number pass out at the root of the penis and join the prostatic plexus. The fibrous envelope of the corpus spongiosum is thinner, whiter in color, and more elastic than that of the corpora cavernosa. The trabecule are more delicate, more nearly uniform in size, and the meshes between them smaller than in the corpora cavernosa, their long diameter, for the most part, corresponding with that of the penis. The external envelope or outer coat of the corpus spongiosum is formed partly of unstriped muscle tissue, and a layer of the same tissue immediately surrounds the canal of the urethra. The corpus spongiosum receives its blood through the bulbourethral branch of the internal pudic artery. The lymphatics of the skin of the penis terminate in the inguinal nodes. The lymphatics of the penile portion of the urethra accompany those of the glans penis and terminate with them in the deep inguinal and external iliac nodes. Those of the membranous and prostatic portions pass to the internal iliac nodes. The nerves are derived from the in- ternal pudic nerve and the pelvic plexus. On the glans and bulb some filaments of the cutaneous nerves have Pacinian bodies connected with them, and, according to Krause, many of them terminate in peculiar end-bulbs (see p. 817). Applied Anatomy.—It is occasionally necessary to remove a penis for malignant disease. Usually, removal of the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
