性器官-女性性器官
The
Sex Organs
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The Female Sex Organs |
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月經週期：3相月經週期
I |
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在一些科學教科書裏，月經週期通常被劃分為2、3、4或更多的不同的階段。對目前實際運用來說，將它劃分成3期似乎是合適的。I
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3相月經週期
(週期第一天至月經最後一天所見的子宮內膜）
1.
排卵期子宮內膜
子宮內膜在月經後開始生長。
2.
植入期子宮內膜
子宮內膜為胚泡的植入做好了準備。
3.
月經期子宮內膜
如果沒有植入發生，子宮內膜破潰並排出月經。
圖例：
A.
子宮內膜；
B.
子宮頸粘液栓；
C.
破潰子宮內膜開始排出； D.
消除粘液栓的區域。
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The
Menstrual Cycle: The Three Phases of the
Menstrual Cycle I |
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In scientific textbooks, the menstrual cycle is usually divided into two, three, four, or more different phases. For our present purposes, a division into three phases seems adequate.
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The Three Phases of the Menstrual Cycle
(Seen as beginning after the last day of menstruation)
1. Preparing for Ovulation The endometrium begins to grow after menstruation.
2. Preparing for Implantation The endometrium is becoming ready for the implantation of a blastocyst.
3. Menstruation If no implantation occurs, the endometrium breaks down and is discharged in menstruation.
Key: A. Endometrium B. Cervical mucus plug C. Detached endometrium being discharged D. Unplugged area.
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