. The anatomy of the domestic fowl . Domestic animals; Veterinary medicine; Poultry. THE URO-GENITAL SYSTEM 175 the posterior border of the kidney, and then maintains about the same cahber throughout the rest of its course. Structure.—The ureter wall is made up of three coats as follows: mucous, muscular and fibrous. Function.—The ureters serve as a passage way for the urine from the kidneys to the cloaca. THE MALE GEITERATIVE ORGANS (Fig. 54) The male generative organs in the fowl consist of two testicles and an excretory apparatus, the vas deferens, for each. The Testicles. Location.—The tes
. The anatomy of the domestic fowl . Domestic animals; Veterinary medicine; Poultry. THE URO-GENITAL SYSTEM 175 the posterior border of the kidney, and then maintains about the same cahber throughout the rest of its course. Structure.—The ureter wall is made up of three coats as follows: mucous, muscular and fibrous. Function.—The ureters serve as a passage way for the urine from the kidneys to the cloaca. THE MALE GEITERATIVE ORGANS (Fig. 54) The male generative organs in the fowl consist of two testicles and an excretory apparatus, the vas deferens, for each. The Testicles. Location.—The testicles are located in the sub- lumbar region of the abdominal cavity, behind the lungs, below the anterior extremity of the kidneys, and opposite the last three Fig. 54.—The pelvic organs of a cockerel. A, Testes. B, Rectum. C, Cloaca. D, Vas deferens. E, Kidney. F, Adrenal gland. G, Lungs. H, Ureter. Shape.—The testicles are eUipsoid in shape; their size varies with the different species of birds. The two in the same bird are usually of the same size, though one testicle may be sUghtly larger than the other. In a summary of a large number of weights of the testicles of ten months old cockerels, the average weight was pound each. The average measurements were 2 inches in the major diameter and i inch in the minor diameter. In the cockerel before sexual maturity, which is denoted by the male bird's crowing, the testicles are very small. They resemble, in shape, a navy bean and are yellowish-white in 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 Kaupp, Benjamin Franklyn, 1874-. Philadelphia ; London : W. B. Saunders Company
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectpoultry
