. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. SPERMATIC CORD VAS DEFERENS VASA EFFERENTIA EPIDIDYMIS EPIDIDYMIS DUCT- TEST IS. SEPTUM SEMINIFEROUS TUBULE SCROTUM Fig. 136.—A partially dissected human testis and a diagram showing the rela- tions of its parts. (Partly after Sobotta: Atlas and Textbook, of Human Anatomy, published by W. B. Saunders Co.) the vasa efferentia deliver their contents into the single main duct, the vas deferens, the mesonephric duct of lower forms. The vas deferens is joined near the base of the urinary bladder b
. Elements of biology, with special reference to their rôle in the lives of animals. Biology; Zoology. SPERMATIC CORD VAS DEFERENS VASA EFFERENTIA EPIDIDYMIS EPIDIDYMIS DUCT- TEST IS. SEPTUM SEMINIFEROUS TUBULE SCROTUM Fig. 136.—A partially dissected human testis and a diagram showing the rela- tions of its parts. (Partly after Sobotta: Atlas and Textbook, of Human Anatomy, published by W. B. Saunders Co.) the vasa efferentia deliver their contents into the single main duct, the vas deferens, the mesonephric duct of lower forms. The vas deferens is joined near the base of the urinary bladder by a sac termed the seminal vesicle and also receives the duct from a large PROSTATE GLAND. The vas deferens then empties into the urethra. In this region the vas deferens is called :he ejaculatory duct. The urethra thus serves a double function, an outlet from the urinary bladder and an outlet for the products of the testes. The long, contorted seminiferous tubules in the testes are the site of origin and of maturation of the spermatozoa. The walls of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Buchanan, James William, 1888-. New York, London, Harper & brothers
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