102 生殖男 Flashcards

1
Q

問題

A

答案

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2
Q
  1. 睪丸分成多少個小葉?
A

200-300個睪丸小葉

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3
Q
  1. 未成熟的精子經過哪些結構?
A

睪丸網 → 輸出小管 → 副睪丸

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4
Q
  1. 主要的支持細胞是什麼?
A

賽托利氏細胞

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5
Q
  1. 萊狄什氏細胞的功能是什麼?
A

合成和分泌雄性激素(androgen)

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6
Q
  1. 賽托利氏細胞的作用是什麼?
A

支持、提供營養及調節精子生成

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7
Q
  1. 賽托利氏細胞製造哪些重要蛋白質?
A

細胞支持素、活化素及抑制素(inhibin)

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8
Q
  1. 性腺促素的來源是什麼?
A

下視丘分泌性腺促素釋素(GnRH)

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9
Q
  1. 濾泡刺激素(FSH)的主要作用是什麼?
A

主要作用於賽托利氏細胞,刺激精子生成

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10
Q
  1. 黄體生成素(LH)的作用是什麼?
A

刺激萊氏細胞分泌雄性激素

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11
Q
  1. 抑制素的功能是什麼?
A

抑制FSH分泌

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12
Q
  1. 高濃度的睪固酮對GnRH和LH有什麼影響?
A

抑制GnRH及LH分泌(負回饋作用)

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13
Q
  1. 睪固酮是什麼?
A

主要的雄性激素,屬類固醇類激素

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14
Q
  1. 睪固酮的分泌高峰期是什麼時候?
A

胎兒期及青春期

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15
Q
  1. 睪固酮的主要功能有哪些?
A

促進男性生殖器官的發育、精子產生、第二性徵發育

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16
Q
  1. 尖體的功能是什麼?
A

含有酵素,能夠溶解卵鞘,完成受精

17
Q
  1. 精子生成的過程中,精原細胞經過哪些步驟?
A

有絲分裂 → 減數分裂 → 精細胞形成

18
Q
  1. 一個初級精母細胞會產生多少個精子?
A

四個精子

19
Q
  1. 精子進入副睪丸後會發生什麼?
A

暫存及成熟

20
Q
  1. 前列腺素的作用是什麼?
A

使子宮頸輕微開啟,協助精子進入子宮

21
Q
  1. 精漿素的功能是什麼?
A

防止尿道感染

22
Q
  1. 前列腺特定抗原的作用是什麼?
A

協助射精後精液在5-20分鐘內液化,促進精子活動