Some Homologous Structures

性器官-女性性器官
The Sex Organs
- The Female Sex Organs

一些同源结构

男女性系统的一些同源结构

在男婴出生之前,“雄性”激素-睾丸激素将其原初未分化的胚胎转化,引导发育成具有男性性器官的男胎。而在女胎,在这个发育期缺乏睾丸激素,使得原始胚胎“自动”长成具有女性性器官的女胎。但是,既然男女的性器官由相同的胚胎细胞团衍生而来,它们相互对应,或者用科学语言来说,它们是“同源的”。 

(Female)女性

(Ovaries)卵巢
(Urethra)尿道
[Labia minora (minor lips)]大阴唇
  [Labia majora (major lips)]小阴唇
(Clitoris)阴蒂
(Bartholin's glands)前庭大腺
Paraurethral glands ("female prostate")尿道旁腺

男性(Male)

睾丸(Testicles)
尿道前列腺部(Prostatic urethra)
尿道阴茎部(Urethral tube of penis)
阴囊(Scrotum)
阴茎(Penis)
尿道球腺(Cowper's glands)
前列腺(Prostate)
 

Some Homologous Structures

Some Homologous Structures in the Female and Male Sexual Systems

Before a baby boy is born, the "male" hormone testosterone transforms his originally undifferentiated embryo, leading to the development of a male body with male sex organs. In case of a baby girl, the absence of testosterone at this stage lets the embryo grow "automatically" into a female body with female sex organs. However, since both male and female sex organs derive from the same embryonic cell mass, they still correspond to each other or, in scientific language, are "homologous."

Female

Ovaries
Urethra
Labia minora (minor lips)
  Labia majora (major lips)
Clitoris
Bartholin's glands
Paraurethral glands ("female prostate")

Male

Testicles
Prostatic urethra
Urethral tube of penis
Scrotum
Penis
Cowper's glands
Prostate

 

[Course 1] [Female Sex Organs] [External Sex Organs] [Internal Sex Organs] [Homologous] [Menstrual Cycle] [Breasts]