Analysis of test questions: When blood flows through the glomerulus, uric acid, urea, water, inorganic salts and glucose in the blood are filtered through the glomerulus.
renal capsule
In the cavity, forming
Primitive urine
; When raw urine flows through renal tubules, all glucose, most water and some inorganic salts are intercepted by renal tubules.
Reabsorption
These reabsorbed substances enter the capillaries around the renal tubules and are sent back to the blood. Remaining water, inorganic salts, urea, etc. Form urine. Therefore, a person can form 150L of original urine in one day, but only about 1.5L of urine can be excreted, mainly due to the occurrence of renal tubules.
Reabsorption
.