The lymphatic system comprises part of the circulatory system and is primarily responsible for draining excess interstitial fluid and returning this to the blood . It also plays an important role in the immune system, associating with lymphocytes and lymphoid tissues.
- ↑ Sherwood L, Human Physiology: From Cells to Systems. (2012). http://books.google.co.uk/books?id=I9qH3eZ1pP0C&pg=PT401&redir_esc=y#v=onepage&q&f=false. Accessed 2014.
- ↑ Warwick, Roger; Peter L. Williams. "Angiology (Chapter 6)". Gray's anatomy. illustrated by Richard E. M. Moore (Thirty-fifth ed.). London: Longman. pp. 588–785.