Book Title: Jaina Biology
Author(s): J C Sikdar
Publisher: L D Indology Ahmedabad

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Page 241
________________ 230 Jaina Biology fluid, seminal vescicles, prostrate glands, cowper's glands, urethra and penis. 9 According to Biology, a pair of these testes (glands) "develops within the abdominal cavity of all vertebrates, but in man and some other mammals they descend shortly before or after birth into the scroial sac, a loose pouch of skin which is an outpocketing of the body wall."10 "Each testis consists of about one thousand highly coiled seminiferous tubules which actually produce the sperm. The seminiferous tubules are lined with a germinal epithelium made up of rounded cells with large muscles. These cells undergo division to form cells which develop into the sperm, with compact heads, containing the mucleus, and a long whiplike tail for locomotion. 11" "At one end of each seminiferous tubule (testicular tubule) is a fine tibule called the vas efferens, which connects it to a single, com plexly coiled tube, the epididymis, where the sperm are storied. Each of the two epididymides lies close to the base of the testis to which it is attached. From each epididymis a duct, the vas deferens (sperm duct), passes from the scrotum through the remains ol the inguinal canal, into the abdominal cavity and over the urinary bladder to the lower part of the abdominal cacity, where it joins the urethra. The sperm are suspended in a liquid, the seminal fluid, secreted from the seminal vesicle and the prostate gland. These secretions together with sperm, constitute semen. The urethra is a tube leading from the urinary bladder to the outside of the body. In the male the last part of it runs through the penis, the external representative organ, just above and in front of the scrotal sac. Within the penis the urethra is flanked by three columns of erectile tissue which is spongy and capable of being filled with blood.”12 The female reproductive organs : It appears from the statement "Ithhie nābhihitthā sirādugaṁ pupphanäliyzgāram"12a that the egg - producing organs of the female - the ovaries (kucchis) are held in place by ligaments within the lower part 9. Biology p, 422 10. Ibid., p. 421, 11. Ibid, p. 423. 12. Biology. p. 492. 12/a Tandula Veyaliya p. 3 Jain Education International For Private & Personal Use Only www.jainelibrary.org

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