23 Questions
What is the location of a nephron in the kidney?
Partly in the cortex and partly in the medulla
What is the function of the afferent arteriole?
To supply blood to the glomerulus
What is the glomerular capsule?
The blind end of the nephron that contains the glomerulus
What is the purpose of the peritubular capillaries?
To collect reabsorbed substances from the nephron
What is the renal medulla?
The innermost layer of the kidney
What is the primary function of the ureter?
To transport urine from the kidneys to the bladder
What is the function of the renal artery?
To bring oxygenated blood to the kidney
What is the main difference between the male and female urethra?
The male urethra transports both urine and semen
What is the function of the renal capsule?
To cover and protect the kidney
Where are the kidneys located in the body?
Just above the waist on the posterior wall of the abdomen
What is the hilus?
The opening in the kidney where the renal artery, renal vein, and ureter enter and exit
What is the function of the afferent arteriole in the nephron?
To carry blood to the glomerulus
What percentage of blood pumped by the heart goes directly to the kidneys?
25%
What is the primary function of the proximal tubule in the nephron?
Tubular reabsorption
What is the purpose of the hypothalamus in the process of facultative water reabsorption?
To produce ADH
What is the role of the collecting ducts in the formation of urine?
To concentrate urine
How many quarts of urine are formed from the 48 gallons of glomerular filtrate produced daily?
1-2 quarts
What is the function of Antidiuretic Hormone (ADH) in the body?
To conserve water in the body by regulating kidney function
What is the effect of Angiotensin II on blood pressure?
It increases blood pressure by constricting blood vessels
What is the main function of Atrial Natriuretic Peptide (ANP)?
To increase urine output by inhibiting ADH and rennin
What is the purpose of dialysis?
To filter waste products from the blood when the kidneys fail
What is the normal composition of urine?
Urea, creatine, uric acid, fatty acids, enzymes, and hormones
What are kidney stones typically made of?
Uric acid or calcium oxalate
Test your knowledge of the urinary system by identifying the different parts of the diagram and understanding their functions. Learn about the differences between the male and female urethra and the various roles of the kidneys.
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