#1
What is the primary function of the kidneys in the human body?
Filtration of blood and urine formation
ExplanationKidneys filter blood to remove waste and excess fluid, producing urine.
#2
Which part of the urinary system stores urine before it is eliminated from the body?
Bladder
ExplanationBladder stores urine before it's expelled from the body through the urethra.
#3
Which hormone stimulates the production of red blood cells in the bone marrow and is produced by the kidneys?
Erythropoietin
ExplanationErythropoietin, produced by kidneys, stimulates red blood cell production in bone marrow.
#4
What is the role of the juxtaglomerular apparatus in the kidneys?
Regulation of blood pressure and filtration
ExplanationJuxtaglomerular apparatus regulates blood pressure and filtration in the kidneys.
#5
Which hormone is responsible for stimulating the release of aldosterone from the adrenal glands?
Renin
ExplanationRenin stimulates the release of aldosterone from the adrenal glands.
#6
Which part of the nephron is responsible for the reabsorption of water and essential nutrients?
Proximal convoluted tubule
ExplanationProximal convoluted tubule reabsorbs water and essential nutrients from filtrate.
#7
What hormone regulates the concentration of urine by influencing water reabsorption in the kidneys?
Antidiuretic hormone (ADH)
ExplanationADH regulates water reabsorption in the kidneys, controlling urine concentration.
#8
What is the approximate daily urine output for a healthy adult?
2 liters
ExplanationA healthy adult typically excretes around 2 liters of urine daily.
#9
Which of the following is a common symptom of a urinary tract infection (UTI)?
Fever
ExplanationFever is a common symptom of urinary tract infections, indicating an immune response.
#10
What is the functional unit of the kidney responsible for the formation of urine?
Nephron
ExplanationNephron is the kidney's functional unit responsible for urine formation.
#11
In which part of the nephron does the final concentration of urine occur?
Collecting duct
ExplanationFinal concentration of urine occurs in the collecting duct of the nephron.
#12
Which of the following is a common symptom of acute kidney failure?
Edema
ExplanationEdema, or swelling, is a common symptom of acute kidney failure.
#13
Which of the following conditions is characterized by the formation of kidney stones?
Nephrolithiasis
ExplanationNephrolithiasis refers to the formation of kidney stones in the urinary tract.
#14
What is the term for the process by which the kidneys filter the blood and remove waste products?
Filtration
ExplanationFiltration is the process where kidneys filter blood to remove waste and toxins.
#15
What is the term for the process of removing waste products from the blood and adding them to the urine?
Secretion
ExplanationSecretion is the process of moving waste products from blood to urine in the kidneys.
#16
Which structure connects the kidneys to the bladder and transports urine?
Ureter
ExplanationUreter transports urine from kidneys to the bladder for storage.
#17
What is the medical term for the presence of blood in the urine?
Hematuria
ExplanationHematuria is the medical term for blood presence in the urine.
#18
Which of the following substances is actively reabsorbed in the proximal convoluted tubule of the nephron?
Glucose
ExplanationGlucose is actively reabsorbed in the proximal convoluted tubule of the nephron.
#19
Which substance is primarily responsible for the yellow color of urine?
Urobilin
ExplanationUrobilin is primarily responsible for the yellow color of urine.