Vessels and nodes that return tissue fluid to the blood and house immune cells.
Lymph is excess tissue fluid collected by lymph capillaries and returned near the heart. Lymph nodes filter pathogens; lacteals absorb fats. Swelling (oedema) results from lymph blockage.
Lymph flow is driven by muscle movement and one-way valves. The spleen filters blood; the thymus matures T cells. Tonsils guard entry points.
Example: lymph node swelling indicates immune activity.
Vessels and nodes that return tissue fluid to the blood and house immune cells.
Lymphatic System is one of the 51 topics in Human Physiology. It is rated Intermediate, so it suits learners who already know the core vocabulary. Related topics in this area include Blood Vessels, Circulatory System, Skeletal System.
Lymph nodes swell during infection.
Work through the Beginner topics in Human Physiology first, such as Homeostasis, Tissues and Organs, Skeletal System, then return to Lymphatic System. Intermediate topics assume the Beginner vocabulary.
The closest topics to Lymphatic System are Blood Vessels, Circulatory System, Skeletal System, Tissues and Organs. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Lymphatic System. To practise the whole of Human Physiology, use the Human Physiology quiz.
Lymphatic System: Vessels and nodes that return tissue fluid to the blood and house immune cells. Blood Vessels: Arteries carry blood away from the heart, veins return it and capillaries exchange materials. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Blood Vessels and explain the difference aloud. Finally, take the Human Physiology quiz and come back to this page for any question you miss.
Arteries carry blood away from the heart, veins return it and capillaries exchange materials.
❤️ Human PhysiologyThe heart, blood vessels and blood that transport materials around the body.
❤️ Human PhysiologyBones, cartilage and joints that support the body, protect organs and allow movement.
❤️ Human PhysiologyCells form tissues, tissues form organs and organs work together in systems.
❤️ Human Physiology