A) Only sympathetic B) Only parasympathetic C) Both D) Intrinsic pacemaker in smooth muscle of ureter Answer (Select an option above to get the answer):
A) Medullary hyperosmolarity B) Reabsorption of Na+ in thick ascending limb C) Action of ADH via aquaporin channels D) Urea recycling Answer (Select an option above to get the answer):
A) Sensing of Na+ concentration in the macula densa B) Sensing of Cl- concentration in macula densa C) Sensing NaCl concentration in the macula densa D) Opening up of voltage gated Na+ channels in afferent arteriole Answer (Select an option above to get the answer):
A) Proximal convoluted tubule B) Distal convoluted tubule C) Cortical collecting duct D) Medullary collecting duct Answer (Select an option above to get the answer):
A) ECF volume contraction B) Increase in RBF C) Reduction of medullary hyperosmolarity D) Increase in GFR Answer (Select an option above to get the answer):
(Single Best Answer) Question 9: Which one of the following statements is true regarding water reabsorption in the tubules ?
A) The bulk of water reabsorption occurs secondary to Na+ reabsorption B) Majority of facultative reabsorption occurs in proximal tubule C) Obligatory reabsorption is ADH dependent D) 20% of water is always reabsored irrespective of water balance Answer (Select an option above to get the answer):
(Single Best Answer) Question 10: Several hormones regulate the tubular reabsorption of water and electrolytes at different sites in the nephron. Which of the following combination is correct ?
A) Angiotensin in distal tubule B) Aldosterone in collecting ducts C) ADH in proximal tubule D) ANP in loop of Henle Answer (Select an option above to get the answer):