. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. FALLOPIAN TUBE OH OVIDUCT — (ABNORMAL ANATOMY). curring in the acute or chronic form, the fluid, secreted more abundantly than in a state of health, may find vent by either or both of the tubal orifices, so long as these re- main pervious. It is probable that in this affection the superabundant fluid flows generally by the lower orifice into the uterus, and so escapes per vaginam, constituting one of the numer- ous forms of " ; But if both ex- tremities of the tube are closed, then, as in the case o
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. FALLOPIAN TUBE OH OVIDUCT — (ABNORMAL ANATOMY). curring in the acute or chronic form, the fluid, secreted more abundantly than in a state of health, may find vent by either or both of the tubal orifices, so long as these re- main pervious. It is probable that in this affection the superabundant fluid flows generally by the lower orifice into the uterus, and so escapes per vaginam, constituting one of the numer- ous forms of " ; But if both ex- tremities of the tube are closed, then, as in the case of haemorrhage or menstruation oc- curring under like circumstances, the fluid collects within the tube and mechanically distends its walls. 619 The pressure producing this distension, when operating in only a slight degree, causes a nearly equable enlargement of the tube, so that its natural conical shape is still preserved. But as the quantity of fluid increases, the thin- ner and less resisting portions of the walls, which lie towards the distal extremity, give way more rapidly than those at the proximal end ; and the tube, after becoming irregularly tortuous, is at length converted into a series of sacculi, the largest of which, usually of a pyriform shape, occupies the extremity of the tube (fig. 4-22. d). From the irregularity with which different portions of the tube walls dilate under the Fig. Distension of the Fallopian tubes, with obliteration of both orifices. {After Hooper.) a, uterus; b, vagina; c, os uteri; d andy, Fallopian tubes; e, ovary. pressure of the accumulated fluid, it often happens that several angles are formed by the sudden bending of the parietes, and at these points the tube walls, extending inwards, con- stitute so many valvular projections which partition the tube into several irregular cham- bers, communicating together by narrow ori- fices. Such a condition of parts may be frequently observed upon both sides of the body, as in _/%. 422.,
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