论文部分内容阅读
作者认为子宫颈与宫颈粘液具下列7种生理功能:一、为精子建立适当环境,保护精子避开阴道的有害条件:阴道内pH为3～4.5,碱性的前列腺分泌液与精液对精子起一定的保护作用。但射精后,阴道内pH还为6.1～6.2,精子在酸性分泌液中就不活动,在碱性粘液中则活动度增加,故碱性的子宫颈粘液可为精子建立良好的环境。但如pH高于8.5,则对精子反有害。在人类,射精后,于阴道后穹窿及宫颈部位积聚1.5～5亿精子。人类精液于射精后
The authors believe that cervical and cervical mucus with the following seven physiological functions: First, to establish an appropriate environment for sperm to protect the sperm to avoid the harmful conditions of the vagina: vaginal pH is 3 to 4.5, alkaline prostate secretions and semen on sperm A certain degree of protection. However, after ejaculation, vaginal pH was 6.1 ~ 6.2, sperm in the acidic secretion is not active in alkaline mucus activity increased, so alkaline cervical mucus for sperm to establish a good environment. However, if the pH is higher than 8.5, it is harmful to sperm. In humans, after ejaculation, in the vaginal fornix and cervical site accumulation of 1.5 to 500 million sperm. Human sperm after ejaculation