Chapter 13 (Part 2) Flashcards
what kind of flow occurs when you hear no sound?
laminar flow
what kind of flow occurs when you hear audible vibrations?
turbulent flow
where are fenestrated capillaries found? (3)
- endocrine glands
- intestinal villi
- kidney glomeruli
what is “bulk flow” ?
the overall movement of water and any dissolved solutes across capillaries
overall movement of water and any dissolved solutes across capillaries is called?
bulk flow
what causes bulk flow? and what is that again?
movement of water and any dissolved solutes across capillaries
due to hydrostatic and osmotic pressure gradients
movement out of capillaries is called?
filtration
movement into capillaries is called?
absorption
absorption: in or out of capillaries?
in
filtration: in or out of capillaries?
out
moves or doesn’t move across capillaries: protein-free plasma
moves
moves or doesn’t move across capillaries: most blood proteins
don’t move
what is hydrostatic pressure?
fluid pushing against container walls
as fluid gets pushed out, fluid increases in the interstitial region, creating hydrostatic pressure. so what?
hydrostatic pressure in the interstitial space helps push material back into the capillary bed on the venule side to facilitate absorption
bulk flow is also affected by osmotic pressure. how do we define osmotic pressure here?
the force exerted on water by nonpermeating solutes (mostly proteins)