AUBF Flashcards
functional unit of the kidney
Nephron
Two types of nephrons
Cortical and Juxtamedullary
Removal of waste products
Cortical
Extend deep into the medulla of the kidney
Urine concentratio
Juxtamedullary
Total amount of plasma plus the hematocrit
Renal Blood Flow
Average body size surface
1.73 m2
Renal blood flow
1200 mL/min
Renal plasma flow
600 to 700 mL/min
Coil of eight capillary lobes
Located in bowman’s capsule
Glomerulus
Three cellular layers
Capillary wall
Basement membrane
Bowman’s capsule inner layer
Primary protein associated with renal disease
Albumin
regulation of arteriole size
Juxtaglomerular apparatus
Larger afferent and smaller
efferent
Prevents decreased glomerular
blood flow
Low systemic blood pressure
Smaller afferent arteriole
Prevents overfiltration and
glomerular damage
High systemic blood pressure
Juxtaglomerular cells
afferent arteriole
Macula densa:
efferent arteriole
Renin an enzyme produced by the
Juxtaglomerular cells
Filtrate specific gravity
1.010
Normal filtrate
120 mL/min of filtrate
Glucose threshold:
160 to 180 mg/dL
Passive reabsorption of water into the
high osmotic gradient of the renal
medulla
Descending loop of Henle
Chloride actively reabsorbed
Sodium passively reabsorbed
Walls are impermeable to water
Ascending loop of Henle
↑Body Hydration
↓ ADH
Normal blood pH
7.4
Infuse substance
Exogenous procedure
Test substance is already present in the body
Endogenous procedure
