6. For the description of "Countercurrent Multiplier System", which one is " Wrong "?
(A) descending limb is permeable for water
(B) ascending is permeable for sodium ion/sodium chloride
(C) mainly happened in renal cortex
(D) sodium ion and urea are responsible for this system in renal medulla

1. 題目解析題目要求選出對於“逆流...