The peritubular capillaries have a lower hydrostatic pressure and a higher protein osmotic pressure than the rest of the capillaries in the body. This is largely thanks to the fact that the blood within them has had a substantial quantity of its plasma removed by the '''glomerulus'''. Resulting in a low concentration of solutes but a high concentration of protein. These pressures however are not constant and changes in them affect reabsorption. They have the biggest effect in the [[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiologyproximal tubule]] thanks to the relatively weaker tight junctions which allow water and ions to pass paracellulary.
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The peritubular capillaries have a lower hydrostatic pressure and a higher protein osmotic pressure than the rest of the capillaries in the body. This is largely thanks to the fact that the blood within them has had a substantial quantity of its plasma removed by the '''glomerulus'''. Resulting in a low concentration of solutes but a high concentration of protein. These pressures however are not constant and changes in them affect reabsorption. They have the biggest effect in the [[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology|proximal tubule]] thanks to the relatively weaker tight junctions which allow water and ions to pass paracellulary.