Systems
The same map, told as channels, vessels, elements, and the systems that should stay separate.
Twelve primary channels
Ren and Du, fully detailed
Other extraordinary vessels
ChongThe sea of blood, studied with the opening point SP4.DaiThe belt vessel, the only horizontal channel in the usual set.Yin QiaoThe yin heel vessel. KI6 opens it.Yang QiaoThe yang heel vessel. BL62 opens it.Yin WeiLinks the yin channels. PC6 opens it.Yang WeiLinks the yang channels. SJ5 opens it.