Which of the following increases GFR but blocks sodium and water reabsorption? A)ADH
B)aldosterone
C)PTH
D)ANP
E)adenosine
D)ANP
The correct answer is D) ANP, which stands for Atrial Natriuretic Peptide.
ANP is a hormone that is secreted by the atria of the heart in response to increased blood volume and pressure. ANP acts on the renal tubules to increase glomerular filtration rate (GFR), which refers to the rate at which blood is filtered through the kidneys.
At the same time, ANP inhibits the reabsorption of sodium and water in the renal tubules, leading to increased excretion of sodium and water in the urine. This results in diuresis, which helps to decrease blood volume and pressure.
So, ANP increases GFR while blocking sodium and water reabsorption.