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Questions and Answers
Which organ is the primary organ of the lymphatic system?
Which organ is the primary organ of the lymphatic system?
- Lymph nodes
- Thyroid
- Spleen
- Thymus (correct)
Where is the thymus gland located?
Where is the thymus gland located?
- Thoracic cavity (correct)
- Pelvic cavity
- Cranial cavity
- Abdominal cavity
What happens to the size of the thymus gland as a person ages?
What happens to the size of the thymus gland as a person ages?
- It enlarges
- It moves to a different location
- It shrinks (correct)
- It remains the same
What is the function of the thymus gland before birth?
What is the function of the thymus gland before birth?
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What is the mechanism of phagocytosis?
What is the mechanism of phagocytosis?
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Which cells recognize the antigens presented by phagocytes?
Which cells recognize the antigens presented by phagocytes?
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Which type of cells perform phagocytosis?
Which type of cells perform phagocytosis?
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What is the role of phagocytosis in the adaptive immune system?
What is the role of phagocytosis in the adaptive immune system?
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What are the main functions of the thymus gland?
What are the main functions of the thymus gland?
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Which part of the body does phagocytosis occur in?
Which part of the body does phagocytosis occur in?
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Study Notes
Lymphatic System
- The primary organ of the lymphatic system is not specified in the text.
Thymus Gland
- The thymus gland is located in the chest, between the lungs.
- The size of the thymus gland decreases as a person ages.
- Before birth, the thymus gland functions to aid in the development of the immune system.
Phagocytosis
- Phagocytosis is a mechanism in which cells engulf and digest foreign particles and microorganisms.
- T-cells recognize the antigens presented by phagocytes.
- Phagocytic cells, such as neutrophils and macrophages, perform phagocytosis.
- Phagocytosis plays a crucial role in the adaptive immune system by processing and presenting antigens to T-cells.
- Phagocytosis occurs in various parts of the body, including the lymph nodes, spleen, and other lymphoid tissues.
Functions of Thymus Gland
- The main functions of the thymus gland include the development and maturation of T-cells, as well as the selection and deletion of T-cells that are self-reactive or non-reactive.
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