Anatomy II- Kidney physiology

What are the 4 processes in urine formation

Glomerulus filtration, tubular resabsorption, subular secretion, H2O reabsorption

What is flomerulus filtration

Blood under increased pressure in afferent arteriole enter glomerulus, filters by size only

what is tubular reabsorption?

nutreinets and ions are removed from the filtrate and retured to the blood

What is tubular secreiton

weastes, excess nutreients, etc, are removed from the blood and added to the filtrate

What is H2O reabsorption

removal of water from filtrate and returning it to the blood

What are factors that affect Flomerulues filtration rate

Juxta glomerular apparatus, if theres is lots of SNS stimuation

What is transport maximum

the maximum amount of nutrients that can be reabsorbes/min

Where is most water reabsorbed

At the loop of henle

What is the decending limb permeable too

permeable to H2O not permeable to NaCL

What is the ascending lim permeable too

Not permeable to H2O, acively pumps out NaCL

What does Anti-diuretic hormones(ADH) do

decreased urine volume, increase H2O reabsorption from filtrate

What does Aldosterone doe

increased production of sodium channels

What does atrial natriuretic hormone doe

antagonist to aldosterone, decrease production of sodium channels