If for some reason, the vasa efferentia in the human reproductive system gets blocked, the gametes will not be transported from
Vasa efferetia are 10 to 20 fine tubules which connect rete testis with the epididymis. The latter is a pair of ducts from each testis which is formed by union of its vasa efferentia. If the vasa efferentia get blocked, the sperms will not be transported from testis to epididymis.