25. The Urinary System

What is the smallest functional unit of the kidney?

Which part of the nephron does not actively or passively transport salt?

What is the correct path of fluid as it is filtered from the blood and flows through the nephron?

What part of a nephron is responsible for reabsorbing all the nutrients and most of the water?

Which portion of the nephron empties into the collecting duct?

In the context of the nephron, what is the functional unit of the kidney responsible for filtering blood and forming urine?

What happens when the concentration of Na+ decreases in the ascending limb of the nephron?

Which structure of the nephron is primarily responsible for filtering blood?

What does the countercurrent mechanism accomplish in the nephron loop?

The collecting duct receives fluid from which of the following structures in the nephron?

Which of the following statements is NOT correct regarding nephrons?

Aquaporins allow which substance to pass through the descending limb of the loop of Henle?

In the urinary system, the functional unit of a kidney is called the _____.

Which substance is secreted by the nephrons during urine formation?

Which structures together form the filtration membrane in the nephron?