. La cyclopaedia d'anatomie et physiologie. Anatomie ; physiologie ; Zoologie. Inversion incomplète de l'utérus. (D'après J. G. Forbes.) le fundus commence à dépasser par l'os de l'utérus, glisser après il les trompes de Fallope, qui sont tirés dans le creux formé par les organe. dilatation de l'utérus d'une tumeur de la taille d'un abricot aplati, qui s'est ex- pelled au moment où l'utérus est entrée Fig. 471.. Inversion totale de l'utérus. (Diagramme.) vers le bas complètement renversé,-l'ac- tion violente des muscles abdominaux et du diaphragme probablement ici à la production ou à l'aide

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. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Incomplete inversion of the uterus. (After J. G. Forbes.) The fundus is beginning to protrude through the os uteri, dragging after it the Fallopian tubes, which are drawn into the hollow formed by the inverted organ. dilatation of the uterine cavity by a tumour the size of a flattened apricot, which was ex- pelled at the moment when the uterus came Fig. 471.. Complete inversion of the uterus. (Diagram.) down completely inverted, —the violent ac- tion of the abdominal muscles and diaphragm probably here producing or aiding the ever- sion. After complete inversion, the uterus may remain incapable of replacement. Under these circumstances, the external surface of the protruding portion loses much of its original character of a mucous membrane, and be- comes covered by a thicker epithelial layer. It continues, however, more vascular than the surface of an ordinary procident uterus, and is especially liable to abrasion and ulceration, from the friction to which it is exposed. When this displacement occurs during men- strual life, and is permanent, the menstrual fluid may be observed at the periods exuding from the surface of the inverted organ. The internal relations of an inverted uterus depend upon the extent of the inversion. In extreme cases the interior of the tumour con- sists of a sac lined by the peritoneum, which originally formed the outer covering of the uterus. The centre indeed of the broad liga- ment mav be said to be inverted so as to form a pouch in which are contained the Fallopian tubes and ovaries, and occasionally a portion of small intestine (fig. 471.). In minor degrees of inversion the uterus remains within the vagina, and the peritoneal pouch in its interior contains only the roots of the uterine appendages {fig- 470.). Anomalies of Size. a. Atrophy.— Under this head maybe in- cluded those examples in which the uterus appears to have been originally well deve- loped, but

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