Fosterudvikling / Embryologi Flashcards

1
Q

Hvor længe er fostret i indifferent stadium (ift køn)

A

6 uger

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2
Q

Hvornår invaderer primordiale kønsceller genitalkammen?

A

5.-6. uge

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3
Q

Hvorfra deriveres gonaderne?

A

Fra coelomepithelet og det underliggende mesenchym på medialsiden af urnyren

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4
Q

Hvornår dannes genitalkammen?

A
  1. fosteruge
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5
Q

Hvordan vandrer primordialcellerne

A

Fra blommesæksvæggen langs det dorsale tarmkrøs til mesenchymet i crista gonadalis

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6
Q

Hvilke gange anlægges uterus og æggeledere fra?

A

Müllerske gange - ductus paramesonephricus

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7
Q

Hvilke gange anlægges sædlederne fra?

A

Wollfske gange - ductus mesonephricus

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8
Q

Hvad bliver coelomepithelstrengene til?

A

Kvinder: Follikelepitel i ovariet
Mænd: Sertoli-celler i testis

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9
Q

Hvad bliver mesenchymet i crista gonadalis til?

A

Kvinder: Theca-celler
Mænd: Leydig-celler

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10
Q

Hvad differentieres hos det mandlige foster?

A

Wollfske gange differentieres til epididymis, ductus deferens og vesicula seminalis
(Müllerske gange tilbagedannes)

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11
Q

Hvad differentieres hos det kvindelige foster?

A

Müllerske gange differentieres til tubae uterinae, uterus og den øverste del af vagina.
(Wollfske gange tilbagedannes)

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12
Q

Hvad ligger inderst - genitalfold eller genitalvold?

A

Folde inderst, volde udenom

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13
Q

Hvorfra deriveres lig. teres uteri?

A

Gubernaculum

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