circulation Flashcards
vascular Starling forces: explain solute transport and fluid transfer
type of fluid movement out into interstitial fluid and back into capillaries
bulk flow
process of bulk flow including types of forces acting
volume of protein-free plasma filters out of capillary (hydrostatic force pushes out), mixes with interstitial fluid and is reabsorbed into capillaries (oncotic force pulls in)
what was Starling’s hypothesis
balance between hydrostatic pressure in blood in capillaries and osmotic attraction of blood in surrounding fluids
when does ultrafiltration occur
if pressure inside capillary greater than interstitial fluid (at start of capillaries)
when does reabsorption occur
if inward driving pressures are greater than outward driving pressures across capillary (at end of capillaries)
what is proof that ultrafiltration is more effective than reabsorption
always losing fluid
what restores fluid lost
lymphatic system
