Shortage of plasma protein and tissues?
why does shortage of plasma proteins cause fluid to collect in the tissues?
Answers:
Im not sure if i said this in the second answer, but the hydrostatic pressure formed in the cappilarys as the pathways gets smaller
Arterys --- arterioles --- capilarys
is solely strong enough to push small molecules out the capilarys like O2 etc, however blood plama and protiens are too big to be pushed out.
As there is solute (protiens) contained by the blood its water potential is lowered meaning tissue fluid with move via osmosis rear into the blood.
However with a lack of plasma, and protiens the water potential within the capillarys will not be as low so the concentration gradient will be lowered, slowing down the reabsorbtion of lymph allowing it to collect in the tissues.
The shortage could be so large that the dampen potential of the tissue fluid is always higher, so there is never and concentration angle formed, meaning that no fluid is re-absorbed this way Source(s): Good luck in the exam -- i will be sitting it aswell ;) haha
Hope its an glib one, with lots in about the lymph system haha :D
Dan x
Plasma proteins are responsible for the Colloid Osmotic Pressure that pulls and keep fluid within the capillaries..now a shortage of these Proteins (due to Malnutrition or loss through urine) lead to a decresed Colloid pressure i.e More fluid leaves the capillary because there is no pressure to oppose the bigger Hydrostatic pressure. Source(s): http://www.cvphysiology.com/
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Answers:
Im not sure if i said this in the second answer, but the hydrostatic pressure formed in the cappilarys as the pathways gets smaller
Arterys --- arterioles --- capilarys
is solely strong enough to push small molecules out the capilarys like O2 etc, however blood plama and protiens are too big to be pushed out.
As there is solute (protiens) contained by the blood its water potential is lowered meaning tissue fluid with move via osmosis rear into the blood.
However with a lack of plasma, and protiens the water potential within the capillarys will not be as low so the concentration gradient will be lowered, slowing down the reabsorbtion of lymph allowing it to collect in the tissues.
The shortage could be so large that the dampen potential of the tissue fluid is always higher, so there is never and concentration angle formed, meaning that no fluid is re-absorbed this way Source(s): Good luck in the exam -- i will be sitting it aswell ;) haha
Hope its an glib one, with lots in about the lymph system haha :D
Dan x
Plasma proteins are responsible for the Colloid Osmotic Pressure that pulls and keep fluid within the capillaries..now a shortage of these Proteins (due to Malnutrition or loss through urine) lead to a decresed Colloid pressure i.e More fluid leaves the capillary because there is no pressure to oppose the bigger Hydrostatic pressure. Source(s): http://www.cvphysiology.com/
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