Question 1: Even if the blood pressure drops quite a lot, the amount of blood filtered by the kidneys will remain fairly constant. Briefly explain how the filtration rate in the kidneys is maintained even if arterial blood pressure changes.
Question 2: After a loss of blood, the blood volume will eventually build up again. Briefly describe how the hormone aldosterone acts on the kidneys to restore blood volume.
Question 3: When you drink alcohol, this will inhibit the secretion of antidiuretic hormone (ADH) from the posterior lobe of the pituitary gland. Briefly explain how this will affect the kidneys and urine osmolarity.