15 Questions
What hormone is responsible for causing Na+ secretion in diabetic kidney disease?
Natriuretic hormone
Which hormone causes an increase in Ca++ reabsorption and blocks phosphate reabsorption?
Parathyroid hormone
What is responsible for checking blood pressure in the aorta and carotid sinuses?
Baroreceptors
Which substance promotes vasodilation in the nephron?
Caffeine
What is the primary hormone that controls sodium levels indirectly?
PTH
What is the main function of the glomeruli in the kidney?
Filter blood to create urine
What is the average volume of urine excreted by a healthy individual per day?
2 liters
What does oliguria, a condition where a person excretes 300-500 mL of urine per day, indicate?
Dehydration
Which part of the nephron is responsible for the regulation of sodium and flow rate in the renal tubules?
Distal Convoluted Tubule (DCT)
What is the purpose of the macula densa in the kidney's nephron?
Monitor sodium levels
What does the presence of leukocytes in urine indicate?
Urinary tract infection
In the context of kidney function, what is tubular reabsorption?
Reabsorption of substances into circulation from renal tubules
What is the primary function of the collecting ducts in the kidney?
Regulate water reabsorption
Why does systemic edema occur in cases where too much protein is pushed into the filtrate?
'Pumped up' body due to lower osmotic pressure in blood
Which hormone regulates sodium reabsorption in the distal convoluted tubule?
Aldosterone
Test your knowledge on the functions and disorders of the urinary system, including the process of urine filtration, indicators of dehydration, and conditions like polyuria and oliguria. Learn about the amount of urine excreted daily and what specific gravity represents in urine analysis.
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