kidney
Kidneys remove wastes and regulate fluid balance. This topic is part of Human Body within Science & Nature. This page currently draws on 15 supporting questions, with answers and bonus facts available below.
kidney trivia questions
What is a main function of the kidneys?
Answer: Filter blood
Bonus fact: Kidneys remove wastes and regulate fluid balance.
What liquid waste do kidneys produce?
Answer: Urine
Bonus fact: Urine carries dissolved wastes out of the body.
The kidneys filter wastes from what?
Answer: Blood
Bonus fact: They produce urine.
What functional unit of the kidney filters blood and forms urine?
Answer: Nephron
Bonus fact: Each kidney contains around a million nephrons.
What hormone produced by the kidneys stimulates red blood cell production?
Answer: Erythropoietin
Bonus fact: Erythropoietin signals bone marrow to make more red blood cells.
Which hormone helps the kidneys conserve water when the body is dehydrated?
Answer: Antidiuretic hormone
Bonus fact: ADH increases water reabsorption in the kidneys.
Which paired muscular tubes carry urine from the kidneys to the bladder?
Answer: Ureters
Bonus fact: The urethra is the tube that carries urine from the bladder out of the body.
The adrenal glands sit on top of what organs?
Answer: Kidneys
Bonus fact: Humans have one adrenal gland above each kidney.
Which physiological ability lets bull sharks tolerate freshwater?
Answer: Osmoregulation
Bonus fact: Their kidneys and glands adjust salt and water balance.
What organ system closely regulates body water and electrolytes?
Answer: Kidneys
Bonus fact: Kidneys adjust urine concentration to maintain balance.
Above which pair of organs are the adrenal glands located?
Answer: Kidneys
Bonus fact: There is one adrenal gland above each kidney.
An organ transplant replaces a failing organ with what?
Answer: Donor organ
Bonus fact: Kidneys, hearts, livers, and lungs can be transplanted.