Cavaillé F, Cabrol D, Ferre F
INSERM U., Paris, France.
Methods Mol Med. 1996;2:335-44. doi: 10.1385/0-89603-335-X:335.
Uterine contractility and cervical tonicity change throughout the menstrual cycle and pregnancy in response to modifications in hormonal environment and tissue receptivity to hormones. The uterine wall consists of a smooth muscle (myometrium) organized into three layers. the inner and outer layers, mainly composed of smooth muscle cells, and the richly vascularized intermediate layer The musculature is thick in the corpus uteri and vanishes at the level of the corpus/cervix Junction. The cervix itself is formed mainly by connective tissue.
子宫收缩力和宫颈张力在整个月经周期和孕期会随着激素环境的改变以及组织对激素的敏感性变化而发生变化。子宫壁由三层平滑肌（子宫肌层）组成。内层和外层主要由平滑肌细胞构成，中间层血管丰富。子宫体部的肌肉组织较厚，在子宫体/宫颈交界处消失。宫颈本身主要由结缔组织构成。
