Explain the process of secretion, Science

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Explain the Process of Secretion

In the process of filtration through the glomerulus, the non-threshold substances and drugs are not cleared from the blood because the blood does not remain for a long time in the glomerulus. Such substances are secreted into the convoluted tubules and cleared from the blood. These substances include para- amino hippuric acid (PAH) and penicillin (a group of broad-spectrum antibiotic drugs obtained from penicillium molds or produced synthetically, used to treat various infections and diseases) etc. They pass from the blood into the urine.

Having learnt about the urine formation function, we move on to the water balance function of the kidney.


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