17 Questions
Where does the majority of reabsorption take place in the nephron?
Proximal convoluted tubule
Which of the following is NOT a function of the proximal convoluted tubule?
Maintenance of osmolar gradient
What is the primary function of Henle's Loop in urine formation?
Selective reabsorption of water
Which component plays a significant role in regulating the Glomerular Filtration Rate (GFR)?
Juxtaglomerular apparatus
Which process helps in maintaining the ionic balance and pH of body fluids during urine formation?
Secretion
What is the function of the distal convoluted tubule and collecting duct in osmoregulation?
Extensive reabsorption of water and certain electrolytes
Which of the following is the correct function of the proximal convoluted tubule in the nephron?
Reabsorption of glucose and amino acids
What is the primary role of Henle's Loop in urine concentration?
Reabsorption of water and ions
Which of the following substances is primarily reabsorbed in the nephron's proximal convoluted tubule?
Glucose
What is the main function of the nephron's tubular secretion process?
Regulate pH balance by secreting hydrogen ions
In the formation of urine, what is the significance of ionic balance?
Maintains proper electrical gradient for nerve function
How does the nephron contribute to acid-base balance during urine formation?
By secreting hydrogen ions to decrease blood acidity
What is the main function of ADH in the kidney?
Facilitating water reabsorption from the latter parts of the tubule
Which hormone is released by the JG cells in response to a fall in glomerular blood flow?
Renin
What is one of the effects of Angiotensin II on the kidney?
Increasing GFR
Which part of the nephron is responsible for reabsorbing the majority of filtered ions?
Proximal convoluted tubule
What is the primary function of the descending limb of Henle's Loop?
Reabsorbing water and ions
Test your knowledge on the retention of electrolytes and urea in the interstitium, concentration of filtrate in DCT and collecting duct, and the mechanisms of urine excretion through the urinary bladder and urethra. Questions also cover GFR definition, autoregulatory mechanisms, and other aspects of the renal system.
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