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
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
