Lymphatic System Basics
What is the clear fluid carried by lymph vessels that helps fight infections?
Lymph
What is the red fluid that circulates through arteries, veins, and capillaries?
Blood
What are the thin tubes that transport lymph throughout the body?
Lymph vessels
What does the lymphatic system help the body fight?
Infections
Both blood and lymph help transport which type of immune cell?
White blood cells
What are the small filters along lymph vessels that remove germs and waste?
Lymph nodes
Unlike blood, lymph does not contain which oxygen-carrying cells?
Red blood cells
What are the smallest lymph vessels, which collect extra fluid from tissues?
Lymph capillaries
One of the lymphatic system’s jobs is to maintain which balance in the body?
Fluid balance
Both blood and lymph move through networks of what structures?
Vessels
Which organ of the lymphatic system helps produce and mature immune cells?
Thymus
Both blood and lymph come from which component of blood?
Plasma
Lymph vessels have more of which structures than blood vessels to keep fluid moving in one direction?
Valves
Lymph vessels prevent swelling by returning excess fluid to which system?
Circulatory system
Lymph is formed when which part of blood leaks into tissues?
Plasma
The largest lymph vessels return lymph to the bloodstream near which organ?
The heart
What part of blood helps with clotting but is not found in lymph?
Platelets
Before re-entering the bloodstream, lymph passes through which structures to be cleaned?
Lymph nodes
Lymph nodes help fight infection by filtering out which harmful invaders?
Bacteria and viruses
While blood delivers oxygen and nutrients, lymph mainly carries which waste products?
Germs, damaged cells, and extra fluid
The lymphatic system also plays a role in absorbing which nutrients from the digestive system?
Fats and vitamins
Lymph moves slowly because it lacks which central pump that blood has?
The heart
What is the process called where leaked plasma from blood vessels enters the lymphatic system?
Tissue fluid formation
The lymphatic system produces and circulates which proteins that help the body fight infections?
Antibodies
The lymphatic system ensures the immune system works properly, just as blood ensures the body gets which two essential substances?
Oxygen and nutrients