10 Questions
Which part of the nephron plays a major role in diluting luminal fluid?
Thick ascending loop of Henle
Where are the cells of the macula densa located?
End of the loop of Henle
Which hormone influences cortical collecting tubule cells for Na reabsorption and K secretion?
Aldosterone
Which substance is not reabsorbed in the proximal tubules?
Creatinine
What percentage of filtered water is reabsorbed in the proximal tubules?
2/3
Which nephron segment is responsible for the regulation of urea absorption and acid-base balance?
Medullary collecting tubules
Which organic molecules are fully or almost fully reabsorbed in the proximal tubules?
Glucose and amino acids
What percentage of additional salt and water is reabsorbed in the distal tubules and connecting tubules?
5%
Which part of the nephron plays a significant role in reabsorbing K, PO4, Ca, and HCO3?
Proximal tubules
Which nephron segment is influenced by ADH for water reabsorption?
Cortical collecting tubule
Test your knowledge on the basic processes involved in the functioning of the kidneys, including glomerular filtration and renal handling of substances. Understand how nephrons and collecting tubules work together to maintain fluid balance in the body.
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