Structure if the kidneys

Cards (14)

Renal artery
renal vein
pyramid
branch of renal artery
nephron
cortex
medulla
branch of renal vein
pelvis
ureter
what are the two important homeostatic roles of the kidney
Excretion and osmoregulation
How does blood enter and leave the kidney
Enters via the renal artery supplied by abdominal aorta and leaves via the renal vein which drains into inferior vena cava
How much blood passes through the kidney every minute
90-120cm3
How long does it take for all the blood in the body to pass through the kidney
1 hour
How much blood does the kidney filter a day
180 dm3
How much urine is produced a day
1-2cm3
How does urine exit the bladder when full
The sphincter opens
What are nephrons  
Filtering units
What is the cortex
The dark outer layer where filtering of the blood takes place with dense capillary network
What is the medulla
Contains the tubules of the nephrons that form pyramids in the kidneys and collecting ducts
What is the pelvis  
The central chamber where urine collects before passing down the ureter
How big is a nephron
About 3 cm
How many nephrons in each kidney
About 1.5 million