ANATOMY - LYMPHATIC SYSTEM
What does the lymphatic system do - correct answer Returns leaked fluid to the
blood and cleanses that fluid of bacteria and foreign matter.
Which body system plays a very important role in immunity - correct answer
Lymphatic
What two parts make up the lymphatic system - correct answer Lymphatic
vessels (like capillaries) and lymphoid tissues (like lymph nodes etc)
What do the lymphatic vessels do - correct answer Return excess tissue fluid
(lymph) back to the blood, flowing only in the direction of the heart.
What stops lymph flowing back down the lymphatic vessels? - correct answer
Minivalves (similar to veins)
What do lymph nodes do - correct answer They clean the blood of debris and
checked for bacteria and foreign matter.
How does lymph flow through the body - correct answer It is pushed by pressure
up through lymph vessels, detours via lymph nodes, into larger and larger
vessels, ending up in lymphatic collecting vessels before being dumped into one
of the two ducts (thoracic and right lymphatic) that empty the lymph into their
subclavian vein.
What do the lymph nodes produce and contain - correct answer Lymphocytes (B
and T), and macrophages
What are T cells or T lymphocytes also known as - correct answer Killer cells
(they scan for rogue cells and destroy them)
