Faussone-Pellegrini M S, Bani G, Bianchi S
Department of Human Anatomy and Histology, Faculty of Medicine, University of Florence, Italy.
Arch Histol Cytol. 1991 Jul;54(3):289-98. doi: 10.1679/aohc.54.289.
The muscle coat of the upper region of the mouse oviduct undergoes morphological changes in both the muscular and the connective matrix components during pregnancy and the post-partum period. During pregnancy, there is a significant increase in the number of mitochondria and caveolae and in the extension of the smooth endoplasmic reticulum in smooth muscle cells, suggesting the enhancement of their contractile activity. Within two days after delivery, these changes regress completely. The interstitial connective matrix in pregnancy undergoes a de novo genesis of basal lamina-like material and of collagen fibers, which vary in diameter and are irregular in outline. Both these connective components appear in relation to deep, round shaped pits present all along the smooth muscle cell surface. After delivery, characteristic morphological patterns appear associated with the active role which the smooth muscle cells play in resorption and reorganization of the intercellular connective matrix.
小鼠输卵管上部的肌层在妊娠和产后期间，其肌肉和结缔组织基质成分均会发生形态学变化。在妊娠期间，平滑肌细胞中线粒体和小窝的数量显著增加，滑面内质网也有所延伸，这表明其收缩活性增强。分娩后两天内，这些变化完全消退。妊娠期间的间质结缔组织基质会发生类似基膜物质和胶原纤维的新生，这些胶原纤维直径各异且轮廓不规则。这两种结缔组织成分均出现在沿平滑肌细胞表面分布的深圆形凹陷处。分娩后，出现了与平滑肌细胞在细胞间结缔组织基质的吸收和重组中所起的积极作用相关的特征性形态模式。
