Cortex :It contains Bowman's capsules, glomeruli and coiled tubules
Medulla :It contains the loop of Henle and the collecting duct.
Pelvis :It collects urine and drains it into the ureter.
resources from New Certificate series
The urea concentration in collecting duct is greater than distal convoluted tubule because water is further absorbed in the collecting duct which increase the percentage of urea against water, in other words, urea concentration. Note that it is NOT the amount of urea increases.
Normally glucose and amino acid are FULLY reabsorbed in the proximal tubule. MOST water are absorbed there.
Absorption of urea is only under the effect of diffusion, NOT including active transport.
Do not confused 'excretion' with 'egestion'.
沒有留言:
張貼留言