Which organ is part of the lympho-reticular system?

Which organ is part of the lympho-reticular system?

• A. Heart
• B. Kidneys
• C. Lungs
• D. Lymph Nodes

Answer: (D)

The lympho-reticular system centers on structures that move and filter lymph and support immune defense. Lymph nodes are small, bean-shaped organs that filter lymph as it circulates and host immune cells like lymphocytes and macrophages. They trap pathogens and present antigens to coordinate immune responses. The heart, kidneys, and lungs are not part of this system—the heart is part of the circulatory system, kidneys of the urinary system, and lungs of the respiratory system. Because of their role in filtering lymph and supporting immune function, lymph nodes belong to the lympho-reticular system.

The lympho-reticular system centers on structures that move and filter lymph and support immune defense. Lymph nodes are small, bean-shaped organs that filter lymph as it circulates and host immune cells like lymphocytes and macrophages. They trap pathogens and present antigens to coordinate immune responses. The heart, kidneys, and lungs are not part of this system—the heart is part of the circulatory system, kidneys of the urinary system, and lungs of the respiratory system. Because of their role in filtering lymph and supporting immune function, lymph nodes belong to the lympho-reticular system.