The Kidneys Flashcards
Label this diargam of the urinary system


vena cava
the main vein returning blood to the heart
renal vein
takes “cleaned” blood away from the kidneys
aorta
the main artery supplying oxygenated blood to the body
renal artery
brings blood containing “waste” to the kidneys
urethra
carries urine out of the body
ureter
carries urine to the bladder
bladder
muscular sac that stores urine (about 700cm3)
sphincter muscle
keeps the bladder closed
In diagrams, what colour is deoxygenated blood and what colour is oxygenated blood?
deoxygenated blood = blue
oxygenated blood = red
What are kidneys?
effieienct filtration units
kidneys clean the blood and put it back into the vena cava - waste is removed
What is waste and how is it removed?
waste = CO2, urea
waste is removed in the urine through the ureter
Label this “kidney connections” diagram


Label this “kidney connections” diagram


Label this structure of the kidneys diargam


medulla
lighter middle layer of the kidney
pelvis
central cavity which collects urine
cortex
darker outer layer
nephron
filtration unit (where urine is produced)
about 2cm long and very thin
How is waste removed from the body?
mouth (exhalation)
skin (sweat)
kidneys (urine)
What waste is removed from the body through the mouth (exhalation)?
CO2
water
What waste is removed from the body through the skin (sweat)?
urea
water
salt
What waste is removed from the body through the kidneys (urine)?
urea
water
salt
What is the main function of the kidney?
to get rid of waste such as:
urea
excess water
excess salt (mineral ions)












