Kidneys Flashcards
(13 cards)
What is the function of the renal cortex
housing the nephrons
the blood-filtering units
producing hormones
Function of the ureter
transport urine from the kidneys to the urinary bladder for storage and subsequent excretion
What is the function of the renal pelvis
collects urine produced in the kidneys and directs it towards the ureters
Function of the nephron
filter blood and produce urine
bowman’s capsule function
blood filtration in the process of urine formation
glomerulus function
Filters blood, creating a fluid called filtrate which is then processed by the nephron to form urine
What is the main function of the kidneys
To filter the blood and remove all the unwanted waste and regulate ions and water
What is the main waste product
Urea
What is urea
Urea is produced in the liver.[Deamination] It’s a waste product of protein metabolism
What are ways we lose water
Sweat
Urination
Breathing
Defecation
Why is water regulation so important
Cells will lose or gain water through osmosis depending on how many water we have in our body
what is the process for urine formation
Blood enters the kidney through the renal artery.As blood passes through the glomerulus it absorb anything small such as water,amino acids and urea but it dont absorb large things like cells or proteins[This process is called ultrafiltration]As substances continue moving through the tubules,they reabsorb things they want which is called selective reabsorption. The things not wanted forms the urine
How are water levels regulated
Hypothalamus detects the concentration of water in the bloodstream.If it detects water levels are too low it sends a signal to the pituitary gland to release a hormone called ADH[anti-diuretic hormone] into the bloodstream. It tells the kidneys to reabsorb more water into the blood [water n bloodstream increases] resulting in less urine
