Khan Academy on a Stick
Why we need a lymphatic system
Welcome to the lymphatic system! Find out why we need it, and how it interacts with our blood vessels. By Patrick van Nieuwenhuizen.
If the above player doesn't work, try this direct link.
Welcome to the lymphatic system! Find out why we need it, and how it interacts with our blood vessels. By Patrick van Nieuwenhuizen.
If the above player doesn't work, try this direct link.