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Arteries, arterioles, precapillary sphincter -smooth muscle cells Capillaries -pericytes

Arteries, arterioles, precapillary sphincter -smooth muscle cells Capillaries -pericytes. Starling forces: J = flux across capillary k is constant, relates to permeability Pc, capillary hydrostatic pressure Pi, interstitial pressure p c , capillary osmotic pressure

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Arteries, arterioles, precapillary sphincter -smooth muscle cells Capillaries -pericytes

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  1. Arteries, arterioles, precapillary sphincter-smooth muscle cells Capillaries-pericytes

  2. Starling forces: • J = flux across capillary • k is constant, relates to permeability • Pc, capillary hydrostatic pressure • Pi, interstitial pressure • pc , capillary osmotic pressure • pi , interstitial osmotic pressure

  3. Starling forces • hydrostatic pressure and interstitial osmotic pressure favor flux out of capillaries • capillary osmotic pressure and interstitial hydraulic pressure favor flux into capillaries. • Net effect is fluid loss into interstitial tissues, returned by lymphatics to blood

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