Reabsorption & secretion Flashcards
What are the different mechanisms that reabsorption/secretion can occur in the kidney
Where does it occur
Active transport
passive osmosis/diffusion
hormone driven activation
nephron tubules
What are favoring forces of pressure in the kidney
systemic arterial pressure
hydrostatic pressure in capillary
What are apposing forces of kidney pressure
Hydrostatic pressure in Bowmans capsule
Oncotic pressure of glomerular capillary blood
Where does most of the tubular reabsorption occur
proximal tubule
What is sodiums cotransporter that is needed when crossing into the epithelial cells
Glucose
Where is majority of sodium and water reabsorbed
proximal tubule
What is the point of secreting H+ in the nephron
To maintain pH in the blood
What part of the LOH is impermeable to water
Ascending
Where are aquaporins located in the nephron
thin descending LOH
permeable to H2O
Which part of the LOH contains active transport ions
What are the cotransport proteins
Thick ascending
Na+/K+/Cl-
