Ch 14.1 Lecture Notes -- VTPP 435

Ch 14.1 Lecture Notes -- VTPP 435

Renal Cortex Components

-Bowman's Capsule
-Proximal Tubules
-Distal Tubules

Renal Medulla Components

-Loops of Henle
-Collecting Ducts

Distal and collecting Tubule

-variable, controlled reabsorption of Na+ and H2O and secretion of K+ and H+

Juxtaglomerular Apparatus

helps conserve water

Cortical Nephrons

-dump solute
-urine isn't concentrated

Ultrafiltration

everything ends up in glomerulus from blood except proteins

Starling Equation

governs process of filtration and secretion and reabsorption

Proximal Tubule

-reabsorbs 70% of filtrate
-reabsorbs solute and water
-isoosmotic reabsorption
-300 mOsm

Loop of Henle

-reabsorbs 20% of filtrate
-more solute than water
-filtrate becomes diluted
-100 mOsm

Distal/Collecting Tubule

-reabsorbs 10% of filtrate
-depends on hydration (100-120 mOsm)