DIE MUSKULATUR DER TUBA UTERINA ALS FUNKTIONELLES SYSTEM

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Abstract
This investigation aims at an examination of the arrangement of the musculature of the oviduct as a "functional system." Both fetal and functionally mature oviducts were used in the research. The investigation concerns only the three layers of musculature of the tube proper, and excludes the relatively thin subserosal muscle bundles. The muscle fibers in these layers show various degrees of steepness of pitch in relation to the longitudinal axis of the oviduct. These are not 3 independent muscle layers, but a continuous spiral system intimately connected both anatomically and functionally. The middle layer, which has been described so far as circular musculature, has the most complicated structure and shows the spiral course of the muscle fibers clearly. The middle layer is made of 2 components of spiral bundles, one the mirror image of the other. These clock-wise and counter-clock-wise spirals run in the direction of the oviduct from outside inwards. The arrangement of the muscle fibers within the musculature of the oviduct is important for an understanding of its function, which is considered so far as it can be interpreted from structural features. This plan of construction is also the fundamental pattern of the myometrium. Indeed the basic structure of the myometrium is thought to be explainable on the basis of a fusion of two Mullerian ducts. This new conception of the basic structure of the oviduct is discussed with reference to Goerttler''s scheme for the human uterus.
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