BIOL 222 Lecture Notes - Lecture 10: Simple Squamous Epithelium, Polycythemia, Viscosity
Document Summary
Turbulence- resistance due to irregular blood flow at high rates. Calcification- less elastic- cannot expand as much. Diffusion- movement of molecules down a concentration gradient. Concentration = larger the difference in concentration the faster things move (pressure) Size of solute= small things move faster. Kid and linebacker in a ball pit. Moving out of a vessel into a tissue. Solutes move with water from high pressure to low pressure. Osmotic movement of water into capillaries (some soutes follow) Osmotic pressure in blood due to proteins. Net hydrostatic pressure- pressure water exerts on vessel wall. Nhp= capillary hydrostatic pressure- interstitial hydrostatic pressure. Typically chp varies from arterial end to venous end. Net colloidal osmotic pressure- force of proteins pulling water toward it. Ncop= blood colloid osmotic pressure- interstitial osmotic pressure. Typically bcop should not change from arterial end to venous end.
