how the lymphatic system works
The lymphatic system is made up of a network of vessels that collect excess fluid, proteins, and waste products from tissues throughout the body. This fluid, called lymph, is then transported through lymphatic vessels and eventually returned to the bloodstream near the heart.
Lymphatic vessels contain specialized cells and one-way valves that help keep lymph moving in the correct direction. Smaller vessels throughout the body connect to larger lymphatic channels as they move toward the chest and heart.
What does the lymphatic system do?
The lymphatic system has several important functions:
- Maintains fluid balance by returning excess fluid from tissues back to the bloodstream
- Aborbs fats and certain nutrients from the digestive tract
- Helps fight infection by transporting immune cells throughout the body
- Removes waste products and other substances from tissues
key parts of the lymphatic systems
Lymph
A clear fluid that contains proteins, fats, immune cells, and waste products. Lymph circulates throughout the lymphatic system and plays an important role in immune function.
Lymphatic Vessels
A network of small tubes that collect and transport lymph throughout the body.
Lymphatic Endothelial Cells
Specialized cells that line the inside of lymphatic vessels and help maintain their structure and function.
Lymphatic Valves
One-way valves located within lymphatic vessels that help keep lymph moving toward the heart and prevent it from flowing backward.
Why is this important?
When the lymphatic system develops or functions differently, lymphatic fluid may not move normally through the body. This can lead to swelling, fluid collections, or the formation of lymphatic malformations and other lymphatic disorders.
Understanding how the lymphatic system works can help patients and families better understand the conditions that affect it.
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