e. Vessels.
In the cut above we see the septum or division of the cavernous bodies, in which are seen the vessels by which, when the erection of the penis subsides, the blood passes into the dorsal vein of the penis.
The Urethra, or water passage, is the canal that passes through the spongy body to the bladder. The urine and semen pass through it. It is very elastic, and may be dilated so as to admit a large instrument to be passed into the bladder, and it contracts on the smallest. It is supported in its course by the spongy body and the prostate gland, between which is a portion unprotected, called the membranous portion. The passage varies in its size in different parts: thus it is rather contracted at the orifice, enlarges within, and for an inch again contracts, dilates nearer the bulb, diminishes at the membranous portion and near the prostate gland, and finally enlarges into the bladder. The cut opposite will show these parts.
| a. Bladder, or receptacle of urine. b. Ureters, or passages through which the urine comes from the kidneys, where it is formed, to the bladder. c. Vas Deferens, through which the semen passes from the testicle, where it is formed, to the seminal vesicles, where it is matured. d, d. Openings of Ureters into the bladder. e. Prostate Gland. f. Orifices of excretory ducts. g. Openings of the seminal ducts. h. Ischio-cavernous muscles. i. Bulb of Urethra divided. k. Cowpers Glands. l. Wide part of Urethra. m. Narrow part. n. Fossa Navicularis, usually affected in gonorrhœa. o, p. Prepuce. View larger image |
a. Bladder, or receptacle of urine.
b. Ureters, or passages through which the urine comes from the kidneys, where it is formed, to the bladder.
c. Vas Deferens, through which the semen passes from the testicle, where it is formed, to the seminal vesicles, where it is matured.
d, d. Openings of Ureters into the bladder.
e. Prostate Gland.