If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not…
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from
epididymis to vas deferens
ovary to uterus
vagina to uterus
testes to epididymis
Solution
Vasa efferentia (Ductuli efferences) are $10-20$ fine tubules which connect rete testis with an epididymis (Ductus epididymis). The latter is a pair of ducts from each testis which is formed by union of its vasa efferendia. If the vasa efferentia get blocked, the sperms will not be transported from testis to epididymis.