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Samenvatting Stelselmatige Weefselleer H8: Mannelijk Geslachtsstelsel

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Samenvatting gebaseerd op slides van professor Vral met bijhorende notities van in de les, alles wat je voor de theorie moet kennen van dit onderdeel.

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July 17, 2024
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Samenvatting H8: Mannelijk
geslachtstelsel
Inhoud
1. Inleiding..............................................................................................................................................2
2. Testis en afvoerwegen........................................................................................................................2
2.1 Testes = teelballen= testikels.........................................................................................................2
2.1.1 Bouw scrotum/balzak............................................................................................................2
2.1.2 Tubuli seminiferi....................................................................................................................3
2.1.3 Spermatogenesis....................................................................................................................5
2.1.4 Spermiogenesis......................................................................................................................5
2.1.5 Spermatogeen epitheel.........................................................................................................6
2.1.6 Ducti......................................................................................................................................6
3. Epididymis of bijbal.............................................................................................................................7
3.1 Algemeen......................................................................................................................................7
3.2 Bouw.............................................................................................................................................7
3.3 Functie..........................................................................................................................................7
4. Ductus deferens..................................................................................................................................7
4.1 Algemeen......................................................................................................................................7
4.2 Bouw.............................................................................................................................................8
5. Ampulla..............................................................................................................................................8
6. Ductus ejaculatorius...........................................................................................................................8
7. Klieren................................................................................................................................................8
7.1 Vesiculae seminales= zaadblaasjes...............................................................................................8
7.1.1 Bouw......................................................................................................................................8
7.2 Prostaat.........................................................................................................................................9
7.2.1 Anatomisch/klinische indeling (4 zones)................................................................................9
7.2.2 Histologische structuur..........................................................................................................9
7.2.3 Klieren..................................................................................................................................10
7.2.4 Lumen..................................................................................................................................10
7.2.5 Hooggradig PIN= prostaat-intraepitheliale neoplasie..........................................................10
7.3 Bulbo-urethrale klieren= klieren van Cowper.............................................................................10
7.3.1 Bouw....................................................................................................................................10
7.4 Urethrale klieren of klieren van Littré.........................................................................................11


1

, 8. Penis.................................................................................................................................................11
8.1 Bouw...........................................................................................................................................11
8.1.1 Dorsale kolommen= corpora carvernosa.............................................................................11
8.1.2 Ventrale kolom= corpus spongiosum urethrae....................................................................11
8.1.3 Spongieus weefsel gelegen in beide kolommen...................................................................11
8.2 Eindverdikking= glans penis........................................................................................................12
8.3 Huid............................................................................................................................................12
8.4 Bloedvoorziening........................................................................................................................12
8.4.1 A. pupenda interna (splitst in).............................................................................................12
8.4.2 Bloedafvoer.........................................................................................................................12
8.5 Belangrijkste verschillen tussen corpus spongiosum en corpora cavernosa...............................13
8.6 Mechanisme van de erectie........................................................................................................13
8.6.1 Tot standkoming...................................................................................................................13
8.6.2 Detumescentie.....................................................................................................................13
8.7 Lymfevaten.................................................................................................................................13
8.8 Bezenuwing.................................................................................................................................13

1. Inleiding
- 3 functionele componenten
o Testis en afvoerwegen= eigenlijke mannelijke gonaden waar zaadcellen gevormd
worden
o Klieren
 Glandula prostatica: vloeistof waarin zaadcellen zich bevinden aanmaken
 Vesiculae seminales
 Glandula bulbo-urethrales: aanmaak voorvocht
o Penis
 Klieren van Littré= mukeuze klieren
- Functie: productie van sperma/semen (= spermatozoa + zaadvloeistof) en testosteron
o Aangemaakt ter hoogte van testis

2. Testis en afvoerwegen
2.1 Testes = teelballen= testikels
- Ontwikkelt zich in de buikholte en zakt daarna af in scrotum  maturatie zaadcellen bij 35°C
(buikholte is temperatuur hoger dan 35°C)

2.1.1 Bouw scrotum/balzak
- Zakvormige uitstulping van de huid
- Gepigmenteerd en geplooid oppervlak

2.1.1.1 Epidermis
- Meerlagig verhoornd plaveiselepitheel
- Basale cellen: veel pigment


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