Which sequence correctly traces urine from the kidneys out of the body?
12 The Urinary System Online Quiz Questions
Use this free practice quiz with 20 questions to review 12 The Urinary System, test your knowledge, and prepare for your next test or exam.
The outer cortex of a kidney surrounds its inner medulla.
- A
True
- B
False
What is the funnel-shaped area of the kidney that empties into the ureter?
As filtrate travels through the tubule, returns needed water and substances such as glucose and ions to the blood.
Which statement correctly describes blood flow into and out of a kidney?
- A
Blood enters through a renal vein and leaves through a renal artery.
- B
Blood enters through a renal artery and leaves through a renal vein.
- C
Blood enters and leaves through the ureter.
- D
Blood enters through the urethra and leaves through the renal artery.
When the body has excess sodium and water, the kidneys can excrete more of them and thereby reduce blood volume.
- A
True
- B
False
During normal filtration at the glomerulus, which components usually remain in the bloodstream?
- A
Blood cells and most proteins normally pass into the nephron.
- B
Only blood cells pass into the nephron, while all proteins remain in the blood.
- C
Blood cells and most proteins normally remain in the bloodstream.
- D
Filtration moves only proteins into the nephron.
Which urinary waste product comes from muscle metabolism?
The kidneys help control blood acidity by excreting acid and regulating , a base in the blood.
After sweating, the body needs to conserve water. Explain how ADH affects the later nephron and collecting ducts, and describe the expected changes in urine volume and concentration.
Which effect does aldosterone have in parts of the nephron?
- A
It increases sodium reabsorption and potassium secretion.
- B
It increases potassium reabsorption and sodium secretion.
- C
It prevents the nephron from reabsorbing sodium.
- D
It causes the kidneys to stop filtering blood.
Select all the ways the kidneys connect with other body systems beyond urine formation.
- A
They produce erythropoietin, which stimulates red blood cell production.
- B
They produce insulin to regulate blood glucose.
- C
They activate vitamin D.
- D
They produce bile to aid digestion.
Which condition can increase renin release from the kidneys?
- A
High renal blood flow and high sodium delivery
- B
Low renal blood flow or low sodium delivery
- C
High urine volume alone
- D
High potassium secretion alone
Select all statements that correctly describe parts of a nephron.
- A
A renal corpuscle includes a glomerulus within a capsule.
- B
A nephron consists only of a collecting duct.
- C
A nephron includes a tubule that leads to a collecting duct.
- D
The renal pelvis is the capillary filter within the nephron.
What is the urinary bladder’s primary role before urine exits the body?
- A
It filters blood to form urine.
- B
It stores urine until urination.
- C
It carries urine from the kidneys to the bladder.
- D
It carries urine out of the body.
Which description best explains filtration during urine formation?
- A
Reabsorption returns needed substances from the tubule to the blood.
- B
Secretion moves additional substances from the filtrate into the blood.
- C
Filtration moves water and small dissolved substances into the nephron.
- D
Filtration moves blood cells and most proteins into the nephron.
When the body needs to conserve water, ADH can increase water reabsorption in the later nephron and collecting ducts.
- A
True
- B
False
Which condition can increase renin release by the kidneys?
- A
Low renal blood flow or low sodium delivery
- B
High renal blood flow and excess sodium delivery
- C
Increased urine storage in the bladder
- D
High potassium secretion by the urethra
What waste produced from protein breakdown is excreted in urine?
Which enzyme can the kidneys release in greater amounts when renal blood flow or sodium delivery is low?