Sexual Differentiation an der Bicol University | Karteikarten & Zusammenfassungen

Lernmaterialien für Sexual Differentiation an der Bicol University

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Testicular tissues and in particular seminiferous tubules are recognized in the human embryo at what fetal age?
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7 weeks of fetal age (crown-rump lenght 13-20 mm)
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this localized in the kidney region start to decent at this 12th week of fetal age reaching the internal orifices of the in greenery canal at mid-gestation
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Fetal testes
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the critical role of the y chromosome and of male hormones in male orientation is well documented the development of the female sexual differentiation occurring in the absence of male genetic determinants.
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Genetic sex
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Genetic sex is establish at the time of
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Fecundation
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the undifferentiated gonadal primordium which is located at the ventral surface of the primitive kidney or mesonephros is already visible in the 5mm human embryo and consists of a thickening of the coelomic epithelium
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Gonadal differentiation
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it differentiate from interstitial tissue between the 8th and the 9th week and spread progressively in the inter tubular spaces between the 14th and the 18th week.
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Leydig cells
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Occurs during at appropriate critical periods of fetal life.
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Sexual Differentiation
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what theory does seminiferous tubules originate from the mesonephros, the "medulla", while ovarian tissue originates from the secondary sex cords form from the germinal epithelium or "cortex".
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Witschi's theory
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the differentiation of the gonadal ridge into a testis is a rapid phenomenon which contrasts with the slow and late development of the ovary.
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Testicular Differentiation
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They tend to surround the germ cells and prepared the future seminiferous tubules.
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Sertoli cells
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What cells are smaller than the germ cells?
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Sertoli cells
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The transinguinal part of the descent is thought to be mainly_______?
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androgen-dependent
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Beispielhafte Karteikarten für deinen Sexual Differentiation Kurs an der Bicol University - von Kommilitonen auf StudySmarter erstellt!

Q:
Testicular tissues and in particular seminiferous tubules are recognized in the human embryo at what fetal age?
A:
7 weeks of fetal age (crown-rump lenght 13-20 mm)
Q:
this localized in the kidney region start to decent at this 12th week of fetal age reaching the internal orifices of the in greenery canal at mid-gestation
A:
Fetal testes
Q:
the critical role of the y chromosome and of male hormones in male orientation is well documented the development of the female sexual differentiation occurring in the absence of male genetic determinants.
A:
Genetic sex
Q:
Genetic sex is establish at the time of
A:
Fecundation
Q:
the undifferentiated gonadal primordium which is located at the ventral surface of the primitive kidney or mesonephros is already visible in the 5mm human embryo and consists of a thickening of the coelomic epithelium
A:
Gonadal differentiation
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Q:
it differentiate from interstitial tissue between the 8th and the 9th week and spread progressively in the inter tubular spaces between the 14th and the 18th week.
A:
Leydig cells
Q:
Occurs during at appropriate critical periods of fetal life.
A:
Sexual Differentiation
Q:
what theory does seminiferous tubules originate from the mesonephros, the "medulla", while ovarian tissue originates from the secondary sex cords form from the germinal epithelium or "cortex".
A:
Witschi's theory
Q:
the differentiation of the gonadal ridge into a testis is a rapid phenomenon which contrasts with the slow and late development of the ovary.
A:
Testicular Differentiation
Q:
They tend to surround the germ cells and prepared the future seminiferous tubules.
A:
Sertoli cells
Q:
What cells are smaller than the germ cells?
A:
Sertoli cells
Q:
The transinguinal part of the descent is thought to be mainly_______?
A:
androgen-dependent
Sexual Differentiation

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