Inside the Kidney
The kidney is the primary organ for osmoregulation and the excretion of nitrogenous waste.
What is the waste product that gives urine its colour?
What is Inside the Kidney?
"The kidneys are two bean-shaped organs that filter blood to produce urine and maintain the body's internal chemical balance."
What is the main function of the kidneys in homeostasis?
What happens if body cells lose too much water by osmosis?
Urine is produced by filtration of the blood followed by:
Filtration and Reabsorption
Blood is filtered at high pressure to remove small molecules.
All glucose and some ions/water are selectively reabsorbed.
Waste (urea) and excess water/ions form urine.
If you see protein in urine, it means the kidney filter is damaged, as protein molecules are usually too big to pass through.
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