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阴道
位置、形态与功能
阴道（vagina
拉丁语：鞘）为一从子宫颈延伸到外开口的、长约3
1/2的肌性管道。其外开口叫阴道口，为阴户的组成部分。阴道有三个主要的功能：
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1.为月经从子宫排出体外提供通道。
2.为男子的阴茎及其射出精液的容器（此处的描述疑为不妥，可以改为“为性交时的交接器官和容纳精子”——译者注）。精子然后可以借道进入子宫颈。
3.
在分娩时为胎儿从子宫通往外部提供通道。
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The Vagina
Location, form and function
The vagina (lat.: sheath) is a muscular tube about 3 1/2 inches long extending from the cervix to an external opening which is part of the vulva. The vagina serves three main functions:
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1. It provides a passageway for the menstrual flow from the uterus to the outside.
2. It serves as a receptacle for a man's penis and his ejaculated sperm which
then may move on through the cervix.
3. It provides a passageway for the baby during birth from the uterus to the outside.
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