Atlas of Memoir upon the utricular glands of the uterus and the glandular organ of new formation which is developed during pregnancy, consisting of ten plates : also of Monograph upon the unity of the anatomical type of the placenta, consisting of five plates / by G.B. Ercolani ; engraved by Bettini, and reproduced by the heliotype process.

  • Ercolani, Giovanni Battista, 1854-1912.
Date:
1881
Catalogue details

Licence: Public Domain Mark

Credit: Atlas of Memoir upon the utricular glands of the uterus and the glandular organ of new formation which is developed during pregnancy, consisting of ten plates : also of Monograph upon the unity of the anatomical type of the placenta, consisting of five plates / by G.B. Ercolani ; engraved by Bettini, and reproduced by the heliotype process. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    FIGUEE 4. Human Placenta. A yertical section of the uterus, placenta, and chorion is here represented, as in the preceding diagrams. (a) Chorion adhering to the foetal surface of the placenta. (5) Arterial and venous vessels in connection with those of the umbilical cord, from which are given off the villi constituting the foetal portion of the placenta. (c, c) The same viUi which are seen completely enveloped in a sheath (<i, d) from the chorion to the uterus. {d, d) The sheath which originates in the decidua serotina, and is composed of an external wall and an internal epithelial layer which constitute the glandular organ or maternal portion of the placenta. (e, e) Walls of the uterus. (y’) Decidua serotina which covers the uterine surface of the placenta. (g-) Transformation of the walls of the glandular organ furnished to the villi by the serotina into fibrous tissue, so as to fasten firmly to the cho- rion the vessels of the foetal portion of the placenta. (h) A villus of the foetal placenta from which has been removed the outer envelope furnished by the serotina, and which forms the maternal pla- centa. PLATE II. FIGUEE 1. Represents a fold of the uterine mucous membrane of a dog at the end of gestation, placed on a slide, and magnified 250 diameters. The epithelium has been mostly removed to exhibit a utricular or branch- ing gland of the uterus, and to show that there does not exist another species of glands called simple by way of distinction. (a) Utricular or branching gland diminished in length by a blank space across the figure. (5) Rounded orifice of one of these glands, seen from the front, opening into the cavity of the uterus. The tunnel shape of these glands near their opening is clearly seen at a. In this portion of the mucous mem- brane, where is represented the mouth of the utricular glands in the uterus, all of the epithelium has not been removed, and we see the manner in which it is disposed in layers at c, c.