Lymphatic system Flashcards

1
Q

Lymphatic systems role in CVS

A
  • The lymphatic system is an accessory route by which interstitial fluid can be returned to the circulation
  • On average, slightly more fluid is filtered out of the capillaries than is reabsorbed (~3litres/day).
  • This, plus protein that leaks out of capillaries, is returned to the circulation via the lymphatic system
  • Transport of lymph occurs by means of compression of lymphatic vessels by skeletal muscle contraction, aided by one-way valves in vessels
  • The lymph percolates through lymph nodes (little swellings that allow fluid to sit for longer periods of time) which contain phagocytes that destroy bacteria - part of body’s defence system
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2
Q

SUMMARY

A
  • lymph vessels will reabsorb ECF excreted from capillaries
  • role of the lymph system, is replenishing the blood supply w/ fluid thats been lost from the process of filtration
  • returns fluid in the lymph vessels back into the circulation - fluid gets moved back centrally into thoracic cavity
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