A system of obstetrics . pass from one stratum to another,binding all of them together into one hollow muscle. The researches of Kreitzer,2 Luschka,3 and Henle4 correspond in gen-eral with Helies observations. Yon Hoffmann5 describes the arrange- 1 Recherches sur la Disposition des Fibres mnsculaircs de I Uterus divellopi par ht GrcParis, 18G4. L Petersburger med. Zeitschrift, 1871, p. 113. 3 Die Anatomie des Menschlichen Beckens, Tubingen, 1864. 4 Eingeweidelehre, 1873, p. 476. 5 Morpholog. Untersnch. iiber die Muskul. des Ciebarnmtterkorpers, Zeitschrift und Frauenkrankheiten, 18
A system of obstetrics . pass from one stratum to another,binding all of them together into one hollow muscle. The researches of Kreitzer,2 Luschka,3 and Henle4 correspond in gen-eral with Helies observations. Yon Hoffmann5 describes the arrange- 1 Recherches sur la Disposition des Fibres mnsculaircs de I Uterus divellopi par ht GrcParis, 18G4. L Petersburger med. Zeitschrift, 1871, p. 113. 3 Die Anatomie des Menschlichen Beckens, Tubingen, 1864. 4 Eingeweidelehre, 1873, p. 476. 5 Morpholog. Untersnch. iiber die Muskul. des Ciebarnmtterkorpers, Zeitschrift und Frauenkrankheiten, 1876, p. 448. CHANGES IN THE GENITALIA, ETC. 325 ment of the lamellae in accordance with the view that the uterine mus-cular substance is derived by a transformation of the musculature ofthe tubal endings. The important investigations of C. Ruge1 throwmuch light upon the subject. In the pregnant uterus at term themuscular lamella? lie upon each other in strata which, having their Fig. 196. CJt. Fig. 198. iif. Fu;, 196.—Longitudinal Section through the Lower Uterine Segment of a Parturient 197.—The Same Section, with individual muscle-lamella? drawn 198.—Longitudinal Section of same Character, with indication of the shortened I., orincium internum; C R., contraction-ring (C. Ruge, Schroeder). origin in the peritoneum and being inserted in the decidua, pursuea course, from upward and outward, downward and inward. Theindividual lamellre, superimposed upon each other like tiles, are mutu-ally bound together by bands of muscular fibres which pass obliquelyfrom one principal stratum to the plane immediately beneath, so thatwhen the bundles are somewhat stretched apart in dissection, they formlong drawn-out rhomboid figures. 1 Arckiv f. Oynak., xv. p. 202; Zeitschrift. f. Gcburtsh. u. Gynak., v. p. 149; Keuller,Diss. Inaug., Berlin, 1880. 326 THE PHYSIOLOGY OF PREGNANCY. Bayers1 observations constitute the most recent important
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectobstetrics, bookyear1
