Urinary System Review

According to the image, what does the urethra do?

• Stores urine

• Removes substances from the blood

• Transports urine from the kidneys to the bladder

• Conveys urine to the outside of the body

What is the first structure in the nephron where filtration occurs?

• Proximal Tubule

• Distal Tubule

• Bowman's Capsule

• Collecting Duct

Which part of the nephron follows directly after the Bowman's Capsule?

• Loop of Henle

• Collecting Duct

• Distal Tubule

• Proximal Tubule

What is the function of the Loop of Henle in the nephron?

• Filtration

• Reabsorption and concentration of urine

• Secretion of substances into the filtrate

• Collection of urine

Where does the filtrate go after passing through the Distal Tubule?

• To the bladder directly

• Back to the bloodstream

• To the Collecting Duct

• To the Loop of Henle

What is the function of the glomerulus in the nephron as shown in the diagram?

• To collect urine from the nephron loop

• To reabsorb water and nutrients from the filtrate

• To filter blood and form filtrate

• To secrete waste substances into the filtrate

Which part of the nephron is primarily involved in the reabsorption of water and salts from the filtrate?

• Glomerular capsule

• Distal convoluted tubule

• Nephron loop

• Collecting duct

What is the role of the collecting duct in the kidney as indicated in the diagram?

• Filtration of blood

• Reabsorption of glucose

• Secretion of potassium

• Collection and transport of urine to the renal pelvis

What is the functional unit of the urinary system?

• Ureter

• Nephron

• Bladder

• Urethra

How many nephrons does each kidney contain approximately?

• 100,000

• 500,000

• 1 million

• 2 million