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9 Cards in this Set

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  • Back
glomerulus
leaky capillaries with large capillary pores
Glomerulus capsule
where all components of blood, except cells and large proteins, are forced out of the capillaries by blood pressure
primary filtrate
1. fluid in glomerular capsule
2. identical chemical composition to blood plasma without the large proteins
filtration
blood pressure drives convective flow through pores in glomerulus
Glomerular filtration rate (GFR)
total rate at which fluid passes through all the glomeruli in both kidneys, moving from blood into the proximal tubule.
afferent arterioles
1.lined with smooth muscle so they can vasodilate or constrict
2. dillation of afferent arterioles = increase in glomerular pressure and GFR, constriction does the opposite
efferent arterioles
1. dilation of efferent arterioles = decrease in glomerular pressure and GFR, constriction does the opposite
afferent and efferent arterioles and GFR
relative constiction of the afferent and efferent arterioles provides a strong control on GFR and urine formation rate
drops in blood pressure within the kidney =
occurs in the arterioles