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Samenvatting MBG: Hoofdstuk 13

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Samenvatting hoofdstuk 13: Het voortplantingsstelsel

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Uploaded on
September 7, 2023
Number of pages
6
Written in
2022/2023
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Menselijke biologie & genetica
Hoofdstuk 13: Het voortplantingssysteem




Als temperatuur in testikel onder 95F zakt,
trekken de spieren in de balzak samen om
deze dichter bij het lichaam te brengen.

Bulbourethrale klieren: produceren voorvocht
die de urinebuis schoonmaakt

Spermarijping duurt 9-10 weken. Gedurende
deze periode w de cellen omgeven door Sertoli
cellen die voeding voorzien.

Testosteron
Steroïde hormoon geproduceerd door
interstitiële cellen in teelballen

Functie:
- Regelt groei en functie v
voortplantingsorganen
- Stimuleert agressie en seksueel gedrag

, - Regelt ontwikkeling v secundaire
geslachtskenmerken
- Bepaalt snelheid v spermavorming

Wanneer testosteron op normaal level is of erboven
gaat, gaat deze de secretie v GnRH en LH inhiberen
(want deze zorgen voor extra testosteronproductie)
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