Epididymis
It has three parts:
its thick "head" covers the upper pole of the testicle;
its "body" follows its external shape;
Finally, its "tail" ends directly in the vas deferens.
The epididymis contains two types of channels:
efferent cones: They designate 12 to 15 tubes from rete testis and which emerge
the hilum of the testicle to connect at right angles to the epididymal canal.
the epididymal canal: long channel (6m) curled on itself and continuing
through the deferential channel.