Urinary System Flashcards
what is the function of the urinary system
waste removal
what 3 ways does the urinary system
- filters blood
- controls amount of blood in body
- removes harmful waste
how do the kidneys regulate blood
filteriing, reabsorption, secretion
where are the kidneys located
either side of the body, 18th ribs
what are the differences between the left and right kidneys
LEFT- bean shaped, slightly further back
RIGHT- heart shaped, more forward
how many times per day do the kidneys filter blood
400x per day
what are the functions of the kidney
-filtration and balance
-filters balance plasma from blood
-reabsorbs water to maintain homeostasis
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what part of the kidney contains several million nephrons
cortex
how does the kidney acts in reverse
it return nutrients back to blood
what are nephrons
site of filtration of fluid from blood
how do kidney maintain homeostasis
-water balance
-PH
-electrolyte levels
-concentration of plasma products
what are the factors that can influence the kidneys ability to maintain homeostasis
-composition of blood
-arterial blood pressure
-hormones
-autonomic nervous system
how does the glomerular filtrate work
capsule has small holes filter
-good items are too big and don’t fit through filter
- bad items are small and go through filter
what is GFR
rate at which excess fluid and waste is filtered from the blood
what is acid based balance
acids produced by metabolism
