Renal Function & Renal Disorders Flashcards
List 9 normal renal functions
1) Excretion of waste products & urine
2) Regulation of BP
3) RBC production → erythropoietin
4) Breakdown of drugs
5) Metabolism of hormones
6) Regulation of electrolytes & acid-base balance
7) Synthesis of vitamin D
8) FLuid balance
9) Balance pH of blood stream
What happens to vitamin D without proper kidney function?
Vitamin D becomes inactive; & plays a role with calcium absorption
How many lobes are there per kidney?
8-18 lobes
Where are the kidneys located?
Retroperitoneally on the posterior wall of the abdomen
What is each lobe of the kidney composed of?
Nephrons → functional units of the kidneys
What does the renal cortex contain?
Glomeruli, convoluted tubules, blood vessels
What does the inner medulla contain?
Renal pyramids
Which kidney is positioned slightly lower than the other?
The right → because of the liver
Why is it harder for kidneys to get injured?
They are semi protected by the ribs & other organs
What is considered the collection system of the urine?
Renal pelvis
How much of the body’s cardiac output do the kidneys take?
20-25%
Describe the renal artery Hint: 2
1) Divides into 5 segmental arteries that enter the hilus
2) Segmental artery inside kidney branches into lobular arteries, then interlobular arteries
Renal function begins with BF to the ____ ____
Renal vasculature
Kidneys filter ~ ___-___ mL of blood per minute
90-120 mL
What is the main functional unit of the kidney?
Nephron!!
