Countercurrent exchange
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Countercurrent exchange is a mechanism between two flowing bodies flowing in opposite directions to each other, in which there is a transfer of some property, usually heat or some chemical. The flowin
Rete mirabile = RM
Counter current multiplication loop diagram
The arterial and deep vein blood supply to the human arm. The superficial (subcutaneous) veins are not shown. The deep veins are wrapped around the arteries, and the consequent counter-current flow allows the hand to be cooled down considerably without loss of body heat, which is short-circuited by the counter current flow.
Hardendale Lime Works in the UK using countercurrent kilns to reach high temperatures