Why do substances move out of the tissue fluid at the venous end of the capillary?
Pressure outside the capillary greater than tissue fluid
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15
The hydrostatic pressure falls from the arteriole end of the capillary to the venule end of the capillary. Explain why.
Loss of water / loss of fluid / friction (against capillary lining).
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15
What is the role of the heart in the formation of tissue fluid?
Ventricle contraction produces high hydrostatic pressure
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15
Which location has the highest water potential at the venous end of the capillary?
Tissue fluid
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15
How does tissue fluid return to the blood stream?
Via capillaries and lymphatic system
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15
Why do substances move into tissue fluid at the arterial end of the capillary?
Pressure inside capillary greater than tissue fluid
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15
High absorption of salt from the diet can result in a higher than normal concentration of salt in the blood plasma entering capillaries. This can lead to a build-up of tissue fluid.
1. (Higher salt) results in lower water potential of tissue fluid; 2. (So) less water returns to capillary by osmosis (at venule end);
