Tissue Fluid Flashcards
Describe the formation of tissue fluid
-at the arteriole end of the capillary bed there is a high hydrostatic pressure inside the capillary compared to out of the capillary
-forcing water and dissolved substances out into the surrounding tissue
-some of the tissue fluid is eventually reabsorbed and waste products are returned to the capillaries with the tissue fluid because the hydrostatic pressure reduces while the water potential in the capillary lowers, water enter down a water potential gradient
-excess is drained into vessels of the lymphatic system know as lymph
what happens to the hydrostatic pressure when fluid leaves the capillaries at the arteriole end
Hydrostatic pressure lowers meaning the blood pressure at the venous end of the capillaries is much lower
What is the lyphatic system?
A system of tubes that returns excess tissue fluid to the blood system
The hydrostatic pressure of the blood at the arteriole end of the capilary helps to form tissue fluid. Explain how.
The high pressure forces water and dissolved substances out of the cappilaries into the surrounding tissue
In childeren, some ay result in a low concentration of protein in plasma, causing the accumulation of tissue fluid. Explain the link between a low concentration of protein in plasma and the accumulation of tissue fluid.
Due to incifficient protein in plasma the water potential in the capilaries remains higher as no water is absorbed, therefore more tissue fluid is formed
Why does high blood pressure lead to an accumulation of tissue fluid. Explain how.
The blood pressure would be too high for tissue fluid to be re-absorbed into the capilaries, therefore leading to an accumulation of tissue fluid
