Spot the lie on kidney control

Exercise and reference answers

Questions

1. False statement

   A rise in body fluid volume makes the hypothalamus release more ADH.

   Statements

   1. Osmoreceptors are activated by changes in blood volume and ionic concentration.
   2. ADH is released from the neurohypophysis and helps water reabsorption.
   3. A rise in body fluid volume makes the hypothalamus release more ADH.

2. False statement

   Aldosterone is released by the adrenal medulla and blocks sodium reabsorption.

   Statements

   1. Aldosterone is released by the adrenal medulla and blocks sodium reabsorption.
   2. Renin converts angiotensinogen in blood to angiotensin I and then to angiotensin II.
   3. Angiotensin II is a powerful vasoconstrictor that raises glomerular blood pressure.

3. False statement

   ANF constricts blood vessels and pushes blood pressure up.

   Statements

   1. A rise in blood flow to the atria of the heart can release ANF.
   2. ANF constricts blood vessels and pushes blood pressure up.
   3. The ANF mechanism acts as a check on the renin angiotensin mechanism.

Instructions

Each set has one false statement. Tap the one that is wrong.

Explanation