. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. to the extremity of the vagina, dividing the latter, fg. 461., together with the hymen in the virgin state, so that there are two com- plete canals leading to corresponding uterine halves. Group IV. In this group the external form of the uterus differs but little from the normal character. The breadth of the organ, especially between the points of entrance of the Fallopian tubes, is usually greater, and the fundus, though arched, is more shallow than usual. Here also a slight notch, extending into a shallow furrow, runni
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. to the extremity of the vagina, dividing the latter, fg. 461., together with the hymen in the virgin state, so that there are two com- plete canals leading to corresponding uterine halves. Group IV. In this group the external form of the uterus differs but little from the normal character. The breadth of the organ, especially between the points of entrance of the Fallopian tubes, is usually greater, and the fundus, though arched, is more shallow than usual. Here also a slight notch, extending into a shallow furrow, running along the posterior uterine wall, may indicate the seat of that in- ternal vertical septum which more or less completely divides the uterine cavity into two halves, and constitutes the uterus bilociilaris (fig. 464.). Fig. 464. The comua mote completely united externally, find the two halves becoming more nearly parallel. (Ad Nat.) The body is still divided by an internal septum •which descends from the commissure as far as the commencement of the cervix, where it ends in a thin falciform edge. place, and, consequently, where the com- missure approaches nearer to the points of attachment of the Fallopian tubes and round ligaments, the angle has become so much smaller, that the two halves begin to lie nearly parallel with one another, and the horns, or ununited portions, exhibit only a slight di- vergence. In this, as well as in the following group of malformations, there often proceeds from the commissure an internal septum which descends to a variable depth, and exercises a corres) ond- ing influence upon the separation of the two halves. In cases where the commissure representing the fundus lies very low, there may be no septum, and a single cervix con- ducts into two uterine halves which lie right and left of it. In cases where the fundus is higher, if the septum extends downwards only in a slight degree, as in Jigs. 462. and 464., the cervix is still common to both si
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