Kidneys Key Words Flashcards
Urea
Substance formed by breakdown of protein by the the liver
Waste product that kidneys filter out
Regulate
Control/ maintain the rate
Nephron
Each kidney made up of about a million
Filtering units
Proximal tube
Reabsorbs most of the sodium filtered in the glomerulus
Distal tube
Responsible for reabsorbing water
Filtration
Kidneys filter unwanted substances from the blood and urine produced to excrete
Ultrafiltration
One of the three steps of natural blood filtration in kidneys
Hypothalamus
Area of brain that controls body temp, hunger and thirst
Negative feedback loop
Controls amount of reabsorption
Returns something to normal level
Glomerulus
Specialised bundle of capillaries that filter blood
Bowman’s capsule
Part of nephron
Collects blood, filtrate it and sends to renal tube from the further processing to form urine
Homeostasis
Self regulating process to maintain internal stability which adjusting to external changes
Osmoregulation
Process that regulates water balances and maintains homeostasis
Deamination
Remove of amino group from molecules
Loop of henle
Conducts urine within each nephron recovery of water from urine