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Vasa efferentia are the ductules leading from

  • testicular lobules to rete testis

  • rete testis to vas deferens

  • vas deferens to epididymis

  • vas deferens to epididymis


B.

rete testis to vas deferens

Rete testis is connected to caput epididymis by 12-20 fine tubules called vasa efferentia or ductuli efferens. These collect sperms from inside the testis and transfer them to the epididymis. Vas deferens arises from caudal epididymis, conducts sperms from epididymis to urethra.

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Ureters act as urogenital ducts in

  • humans males

  • human females

  • frog's both males and females

  • frog's both males and females


Sertoli cells are found in

  • Ovaries and secrete progesterone

  • adrenal cortex and secrete adrenalin

  • seminiferous tubules and provide nutrition to germ cells

  • seminiferous tubules and provide nutrition to germ cells


Seminal plasma in human males is rich in 

  • fructose and calcium

  • glucose and calcium

  • DNA and testosterone

  • DNA and testosterone


In vitro fertilisation is a technique that involves the transfer of which one of the followings into the Fallopian tube?

  • Embryo only, up to 8 cells stage

  • Either zygote or early embryo up to 8 cell stage

  • Embryo of 32 cells stage

  • Embryo of 32 cells stage


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