Written by Merel Dagher (PEACE Advisor)
Press “Read More” to see the answer.
The correct answer is a. Osmolarity refers to salt levels in your blood, which is increased via the intake of salty foods or dehydration. In response to high levels of osmolarity, the hypothalamus produces ADH which is stored and released by the posterior pituitary and binds to receptors to increase the permeability of the collecting duct to water; this causes an increase in the reabsorption of water which decreases blood osmolarity.