. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 648 UTERUS AND ITS APPENDAGES. cavity; and, pressing upon the bladder and rectum, occasions sometimes an irritable con- dition of these parts. But usually at the end of the third month, the fnndus may be felt emerging from the pelvic cavity ; and in the course of the fourth month, it is always easily distinguishable in the lower part of the hypo- gastric region, having then risen to the height of about three fingers-breadth above the pelvic brim. In the fifth month, the hypogastric region is completely filled ; the abdom
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 648 UTERUS AND ITS APPENDAGES. cavity; and, pressing upon the bladder and rectum, occasions sometimes an irritable con- dition of these parts. But usually at the end of the third month, the fnndus may be felt emerging from the pelvic cavity ; and in the course of the fourth month, it is always easily distinguishable in the lower part of the hypo- gastric region, having then risen to the height of about three fingers-breadth above the pelvic brim. In the fifth month, the hypogastric region is completely filled ; the abdomen then acquiring a considerable rotundity in this situ- ation. By the termination of the sixth month, the umbilical region also is filled, and the fnndus uteri may be felt on a level with, or a little above, the navel. In the course of the remaining three months, the uterus rises gra- dually, until its fundus reaches the level of the ensiform cartilage. And this is very nearly the limit of its ascent, though it occasionally, and chiefly in first pregnancies, rises slightly above that point. In women who have a roomy pelvis, and in those cases where the natural form of the uterus is not altered by over-distension nor mal-position of the foetus, there usually takes place, a few days or shortly before labour, a certain descent of the uterus, which has the effect of partially emptying the epigastric region, and relieving it from the pressure which it had sustained, especially during the last month. The direction which the uterus takes in rising from the pelvis into the abdominal ca- vity, is determined by various circumstances; and it is interesting to observe in what way the addition of so large a body as the fully developed uterus to the already occupied ab- domen, is provided for, without any of the viscera suffering injurious pressure, and with- out that impediment to the circulating and respiratory systems, which, in the absence of such a provision, must inevitably take plac
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