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Questions and Answers
What is the primary function of lymph nodes during infection?
What is the primary function of lymph nodes during infection?
- To produce transudative fluid
- To filter foreign particles out of the lymph fluid (correct)
- To accompany deep arteries
- To transport lymph fluid around the body
Where do the superficial lymph vessels arise from?
Where do the superficial lymph vessels arise from?
- Subcutaneous tissue (correct)
- Deep vessels
- Lymphatic trunks
- Afferent lymphatic channels
What is the primary component of transudate?
What is the primary component of transudate?
- Macrophages
- Proteins (correct)
- Mesothelial cells
- Nucleated cells
Where does the right lymphatic duct drain the lymph from?
Where does the right lymphatic duct drain the lymph from?
What is the composition of lymph primarily comprised of?
What is the composition of lymph primarily comprised of?
Which organ is responsible for the development and maturation of T lymphocyte cells?
Which organ is responsible for the development and maturation of T lymphocyte cells?
What is the main function of the spleen?
What is the main function of the spleen?
Where is the majority of lymph nodes in an adult human located?
Where is the majority of lymph nodes in an adult human located?
What is the main role of lymph nodes in the immune system?
What is the main role of lymph nodes in the immune system?
Which of the following contains lymphatic tissue and plays a role in the immune response?
Which of the following contains lymphatic tissue and plays a role in the immune response?
How does lymph fluid leave the lymph node?
How does lymph fluid leave the lymph node?
What is the primary cell type found in lymph?
What is the primary cell type found in lymph?
Where do the superficial lymph vessels arise from?
Where do the superficial lymph vessels arise from?
What is the primary function of the right lymphatic duct?
What is the primary function of the right lymphatic duct?
What is the main role of macrophages located within the sinuses of the lymph node?
What is the main role of macrophages located within the sinuses of the lymph node?
What is chyle mainly rich in?
What is chyle mainly rich in?
Where do the deep lymph vessels tend to accompany?
Where do the deep lymph vessels tend to accompany?
What is the primary cell type found in transudate?
What is the primary cell type found in transudate?
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Study Notes
Overview of the Lymphatic System
- Comprises a network of vessels and nodes to collect and filter excess tissue fluid known as lymph.
- Returns lymph to the venous circulation and plays a crucial role in immune defense.
Lymphatic Organs
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Spleen:
- Main function is blood filtering, specifically the removal of old red blood cells.
- Contributes to immune response mechanisms.
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Thymus:
- Essential for the development and maturation of T lymphocytes, a type of white blood cell crucial for adaptive immunity.
-
Red Bone Marrow:
- Site for the maturation of immature lymphocytes, akin to thymus function.
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Other Organs:
- Contains lymphatic tissue located in the tonsils, appendix, and gastrointestinal tract, contributing to overall immune function.
Lymph Nodes
- Kidney-shaped structures, averaging 2.5 cm in diameter.
- An adult typically has 400 to 450 lymph nodes, primarily found in the abdomen.
- Function to filter foreign particles from lymph and involve immune responses to infections.
- Each lymph node houses T lymphocytes, B lymphocytes, and other immune cells, allowing for detection of pathogens in the lymph fluid.
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