SEMINIFEROUS TUBULES-> TUBUULI RECTI -> RETE TESTIS -> EFFERENT DUCTULES -> EPIDIDYMIS -> VAS DEFERENS -> EJACULATORY DUCT -> PENILE URETHRA SEMINIFEROUS TUBULES-> TUBUULI RECTI -> RETE TESTIS -> EFFERENT DUCTULES -> EPIDIDYMIS -> VAS DEFERENS -> EJACULATORY DUCT -> PENILE URETHRA

Afferent means going towards a center, in this case, a vessel going towards a lymph node. Efferent means going away from center, in this case, these are vessels associated with the thymus and spleen.

A vessel can be both afferent and efferent if it leaves a peripheral lymph node (where it's efferent to the node) and connects to a greater node, where it becomes an afferent vessel as it enters the greater node or a lymphatic duct.

Another name for efferent neurons are motor neurons. They conduct impulses away from the nervous system.

efferent