Renal Phys ML: 2 Flashcards
What percent of blood will flow through the afferent arteriole?
100%`
What percent of blood flows into the nephron?
20%
What percent of blood flows into the EA?
80%
Tubular reabsorption
the good substances that the body doesnt want to lose will be reabsorbed back into the capillary
Tubular Secretions
secreting undesirable substances into the nephron
Why does secretion not equal excretion
a change that substances can be reabsorbed back in
Drug and Toxin secretions
-freely filtered
-100% secreted
-undesirable substance
Na, Cl, Water secretions
-freely filtered
-partially reabsrobed
Glucose, Amino Acids
-freely filtered
-100% reabsorbed
Where does glomerular filtration take place?
renal corpuscle
Visceral layer of bowman’s capsule
podocute cells that are wrapped around the capillaries
How does the filtered blood leave bowmans capsule
proximal tubule
What do filtration slits allow
fluid to pass into bowman’s capsule
What are the three layers composing the filtration barrier
- capillary endothelium (fenestrated=more exchnage)
- Basement membrane (negatively charged matrix) shrink wrapped around capillary
- Bowman’s epithelium (podocutes and filtration slits)
What is filtrate
blood plasma except for RBCs and proteins
