1.1 Teelbal (testis)
° Uitwendig (uitz: konijn) Optimale spermaproductie
° In balzak (scrotum)
° Positie: diersoortafhankelijk – Horiz: hengst – Vertic: stier, beer, ram
° Grootte en consistentie : zb als maat voor de: - Gezondheid
- Vruchtbaarheid
° Te klein = atrofie (afsterven actief weefsel)
° Te groot = ontsteking
° Histologie Serosa (buikvlies) = tunica vaginalis
Bindweefselkapsel = tunica albuginea
Bindweefselschotten
Parenchym = zaadvormend weefsel
Tubuli seminiferi (zaadbuisjes) = +- 5km!
° Parenchym Tubuli contorti (gekronkeld)
- Spermatogoniën
- Sertoli cellen Ondersteuning + Oestrogenen
- Leydig cellen Androgenen (testosteron)
Tubuli recti (rechte)
Tubuli recti verzamelen tot Ductuli efferentes (afvoerkanaaltjes) monden uit in Bijbal
° Ontwikkeling testis: Voor puberteit alleen bindweefsel
Vanaf puberteit start groei zaadbuisjes
1.2 Bijbal (epididimys)
° Kronkelige buis
° Stier: 30m / Beer: 64m / Hengst: 86 m
° 3 delen: Kop (caput) – Lichaam (corpus) – Staart (cauda)
° Ligging: - OP de testes (hengst)
- ACHTER (stier, beer, ram, reu)
1.3 Balzak (scrotum)
° Bedekt met dunne, klierrijke huid
° Dun behaard
° Spieren helpen scrotum in te trekken of te laten zakken ( Tunica dartos + Musculus cremaster)
° Ter hoogte van de dorsale pool van de testis vertakken de venen zich en vormen de plexus
pampiniformis (lett. : zoals een wijnrank die zich kronkelt omheen een stok) rondom de arterie
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller joycedeloof1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.27. You're not tied to anything after your purchase.