. Bovine obstetrics. Veterinary obstetrics. PROCESS OF EVOLUTION OF THE UTERUS 11 In the non-pregnant nterus, in the Fallopian tube are found numerous small prominences resembling scars or warts; their color is lighter than that of the uterine mucosa ; they are of a longish shape, their long axis being at a right angle to the long axis of the tube. In cows which have borne several calves they are more distinct than in the heifer. These are the cotyledons, or carunculie ; into their surface the villi of the chorion are inserted. During pregnancy follicles form at the site of the cotyledons. Eac
. Bovine obstetrics. Veterinary obstetrics. PROCESS OF EVOLUTION OF THE UTERUS 11 In the non-pregnant nterus, in the Fallopian tube are found numerous small prominences resembling scars or warts; their color is lighter than that of the uterine mucosa ; they are of a longish shape, their long axis being at a right angle to the long axis of the tube. In cows which have borne several calves they are more distinct than in the heifer. These are the cotyledons, or carunculie ; into their surface the villi of the chorion are inserted. During pregnancy follicles form at the site of the cotyledons. Each mass of follicles enlarges, becomes movable and pedunculated. Since the cow has. Fig. 2.—Cotyledon of a non-pregnant Uterus, cross section. (Mag. 57). a. Ciliated epithelium; h, connective tissue witli several cells; c, blood vessels. numerous cotyledons in every tube—40 to 60—respectively placentae maternse, one speaks of a multiple placenta {placenta multipla). The cotyledons are convex. Their surface shows numerous depressions and is covered with pavement epi- thelium. The cotyledons do not contain any muscle tissue: this is very important to explain the expulsion of the afterbirth in the cow. It will be discussed fully (retention of the after- birth) under its proper head. When single placentae, respect-. 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 Bruin, M. G. de; Wyman, Willy Edward Alexander. New York, W. R. Jenkins
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