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Questions and Answers
Where do lymphocytes originate from?
What is the primary function of lymph circulation?
What role do T cells play in the lymphoid system?
What do lymphoid stem cells differentiate into?
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What is the function of lymphatic vessels in the circulatory system?
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Study Notes
Lymphatic System
- Lymphatic vessels allow for the percolation of interstitial fluid through lymph nodes, enabling the immune system to detect pathogens, infectious agents, or cancer cells.
Characteristics of Lymphatic Vessels
- Red blood cells are absent in lymphatic vessels because they never exit capillaries.
- Lymphatic vessels have valves, similar to veins, which facilitate one-way flow.
Lymphatic Drainage
- Fluid from the RIGHT side of the body drains into the right lymphatic duct, then into veins, and finally into the right atrium via the superior vena cava.
- Fluid from the LEFT side of the body drains into the larger lymph vessel, the left thoracic duct, which empties into the superior vena cava.
- The left thoracic duct also drains the abdominal cavity, including fluid from the digestive system.
Cisterna Chyli Fluid
- Cisterna chyli fluid is rich in fats, originating from the small intestines.
- Villi, small, finger-like projections in the small intestine, enhance fat absorption.
- Filariasis, a parasitic infection, can clog lymphatic vessels as parasitic roundworms take up residence inside them.
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Description
Test your knowledge of the lymphatic system with this quiz. Explore the percolation through lymphatic vessels and the role of lymph nodes in immune response. Learn about the absence of red blood cells in lymph and the function of valves in lymphatic vessels.
