A textbook of obstetrics . may beregarded from one point of view as a huge venous plexus. Thewalls of the veins are reduced to the intima, and running between [82 PREGNANCY. muscle-bundles, the contraction of the uterine muscle after laborobliterates them. The nerves are increased more by a development of the con-nective tissue about them (neurilemma) than by an increase ofthe nerve-elements ; but there is some new development of nerve-tissue, the filaments extending toward the uterine cavity. Themain supply of the womb is from the sympathetic system. Theganglia in the genital region show hype
A textbook of obstetrics . may beregarded from one point of view as a huge venous plexus. Thewalls of the veins are reduced to the intima, and running between [82 PREGNANCY. muscle-bundles, the contraction of the uterine muscle after laborobliterates them. The nerves are increased more by a development of the con-nective tissue about them (neurilemma) than by an increase ofthe nerve-elements ; but there is some new development of nerve-tissue, the filaments extending toward the uterine cavity. Themain supply of the womb is from the sympathetic system. Theganglia in the genital region show hypertrophy, especially thecervical. flic lymphatics are increased by hypertrophy and by hyper-plasia. The lymph-spaces below the uterine mucous membrane. Fig. 123.—A, Isolated muscle-elements of the non-pregnant uterus; B, cell> fromthe organ shortly after delivery (Sappej \. are enormously enlarged, and the lymph-tubes leading from themthrough the uterine muscles reach the size of a lymph-tubes or vessels are collected in a plexus beneaththe peritoneum. This arrangement and development of the lymphatics explainin part the remarkably rapid absorption of a great portion of theuterus after labor, and account (or the ready absorption of in-fectious material ; with peritonitis oftentimes .is .in early symp-tom, from the easy communication between the submucous andthe subperitoneal lymph-spaces. Anatomy of the Uterus at F:ull Term The muscle-fibers of the non pregnant uterus have a very irregular arrangement. In THE PHYSIOLOGY OF PREGNANCY. 183 Closelyinterwoven layers. Limit offirmly ad-ht> rut peri-toneum. fc=o the pregnant womb late in gestation three layers may be distin-guished : An outer, a middle, and an int
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
