how can we decrease the lymphatic vessels flow?
increase arterial flow
decrease venous flow
decrease chemotactic factors
increase arterial flow
decrease venous flow
decrease chemotactic factors
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Step I Lymph flow Q
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decrease chemotactic factors
If you were to increase the arterial flow while decreasing the venous flow, the result would be increasing the flow to lymphatics. Starling forces would extravasate fluid into the interstitium, which would then be drained via the lymphatics.
For my own understanding, why would it be incorrect to say that increasing venous flow would allow the lymphatic trunks to drain more efficiently into the jugular-subclavian vein junction? Is that just a less significant mechanism, or are we assuming the question talking about hemodynamics of small vessels?
The latter. The main driving force in putting the interstitial fluid into the lymphatics is the hydrostatic pressure of the interstitial fluid. If the fluid is drained out of the arteries, but can't be drained via the veins, then interstitial fluid would increase as a result, which would then be drained via the lymphatic system. In that scenario, if the draining capacity of the lymphatics is overwhelmed, then this will be clinically manifested as edema.
Increasing venous flow would decrease the lymphatic vessels flow since less fluid will be going to the interstitium.
