…Then, when the corpus luteum is formed, it begins to secrete the luteal hormone (progesterone). The endometrium, which lines the inner surface of the uterine cavity, especially the functional layer (surface layer), is a target tissue that responds sensitively to these ovarian hormones. Estrogen causes the endometrium to thicken during the proliferative phase (from just after the end of menstruation until just before ovulation), while progesterone causes the endometrium to become secretory (from just after ovulation until just before menstruation begins) during which secretory activity is active. If the ovulated egg is not fertilized, the corpus luteum atrophies and secretion of ovarian hormones drops sharply. … *Some of the terminology that refers to "functional layer" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ついで黄体が形成されると,黄体ホルモン(プロゲステロン)が分泌されるようになる。子宮体腔の内面をおおっている子宮内膜ことに機能層(表層部)は,これらの卵巣ホルモンに鋭敏に反応する標的組織で,エストロゲンは子宮内膜の厚くなる増殖期(月経終了直後から排卵直前まで)変化を起こさせ,プロゲステロンは子宮内膜の分泌活動が盛んになる分泌期(排卵直後から月経開始直前まで)をもたらす。排卵された卵が受精しなかった場合には,黄体は萎縮し,卵巣ホルモンの分泌が急減する。… ※「機能層」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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