Name: 動畫 E1，4.1 荷爾蒙在月經週期中的相互作用 (Animation E1, 4.1 Interaction of hormones in the menstrual cycle)
Uploaded: 2025-04-11T13:55:10.000Z
Duration: 3 min 9 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。學這些英文用法：子宮,分泌,月經,週期,刺激,發育,血液,青春期,荷爾蒙,細胞,成熟,人體,釋放,引起,事件,女孩,作用,變化,過程,繼續,看看

Girls start their menstrual cycle when they enter puberty.

女孩進入青春期後就會開始月經週期。

In each cycle, the uterine lining undergoes a pattern of thickening associated with events in the ovary.

在每個週期中，子宮內膜都會發生與卵巢事件相關的增厚。

These changes are mainly brought about by the interaction of hormones.

這些變化主要是由荷爾蒙的相互作用引起的。

讓我們看看互動是如何進行的。

At the beginning of the menstrual cycle, the thickened uterine lining breaks down and menstruation occurs.

在月經週期開始時，增厚的子宮內膜會破裂，出現月經。

Meanwhile, the pituitary gland starts to secrete more follicle stimulating hormone, FSH.

與此同時，垂體開始分泌更多的促卵泡激素（FSH）。

FSH stimulates the development of several follicles in the ovary.

FSH 可刺激卵巢中多個卵泡的發育。

One of the follicles will become fully mature.

During the development of the follicles, the follicle cells are stimulated by FSH to secrete oestrogen into the blood.

在卵泡發育過程中，卵泡細胞受到 FSH 的刺激，向血液中分泌雌激素。

This causes the uterine lining to thicken and inhibits further secretion of FSH by the pituitary gland.

這會導致子宮內膜增厚，並抑制垂體進一步分泌 FSH。

The level of oestrogen continues to rise and reaches a peak just before ovulation.

雌激素水準會繼續上升，並在排卵前達到峰值。

A high level of oestrogen causes a sudden release of FSH and luteinising hormone (LH) by the pituitary gland.

高水平的雌激素會導致垂體突然釋放 FSH 和黃體生成素（LH）。

The high level of LH triggers ovulation, which usually occurs on day 14.

高水平的 LH 會觸發排卵，排卵通常發生在第 14 天。

Shortly after ovulation, the high level of LH stimulates the ruptured follicle to develop into a yellow body.

排卵後不久，高水平的 LH 會刺激破裂的卵泡發育成黃色體。

The yellow body secretes large amounts of progesterone and oestrogen.

黃種人體內會分泌大量黃體酮和雌激素。

The oestrogen level in blood rises again and the progesterone level reaches a peak.

血液中的雌激素水準再次上升，孕酮水準達到峰值。

The high level of progesterone together with oestrogen maintains the thickness of the uterine lining.

高水平的孕酮和雌激素能保持子宮內膜的厚度。

It also inhibits further secretion of FSH and LH by the pituitary gland.

它還能抑制垂體進一步分泌 FSH 和 LH。

The yellow body begins to degenerate around day 24.

Due to the degeneration of the yellow body, the levels of oestrogen and progesterone fall, the uterine lining is no longer maintained, the thickened uterine lining starts to break down, a new cycle begins.

由於黃體退化，雌激素和孕激素水準下降，子宮內膜不再維持，增厚的子宮內膜開始破裂，新的週期開始。