Which statement about lymph nodes is inaccurate?

Which statement about lymph nodes is inaccurate?

• A. They are drained by afferent lymphatic vessels.
• B. They contain strands of lymphatic cells supported by medullary cords.
• C. They contain phagocytic cells.
• D. None of the choices is correct.

Answer: (B)

The statement about lymph nodes that indicates they contain strands of lymphatic cells supported by medullary cords is inaccurate because lymph nodes are organized into distinct functional areas, primarily consisting of the cortex and medulla, where the architecture involves a network of reticular fibers rather than being characterized as strands supported by medullary cords. In the case of lymph nodes, the medulla actually comprises medullary cords, but these are not the primary supportive structures of lymphatic cells. Instead, they are densely packed areas of immune cells, specifically lymphocytes and plasma cells, which are embedded in the reticular connective tissue framework. This structural organization allows for effective filtration and immune response. Additionally, the other statements regarding lymph nodes are accurate. Lymph nodes are indeed drained by afferent lymphatic vessels that bring lymph to the nodes for filtration. They also contain phagocytic cells, such as macrophages, which play a crucial role in the immune response by capturing and destroying pathogens. Thus, the portrayal of lymphatic cells being supported by medullary cords is misleading regarding the correct structural arrangement and function of lymph nodes.

The statement about lymph nodes that indicates they contain strands of lymphatic cells supported by medullary cords is inaccurate because lymph nodes are organized into distinct functional areas, primarily consisting of the cortex and medulla, where the architecture involves a network of reticular fibers rather than being characterized as strands supported by medullary cords.

In the case of lymph nodes, the medulla actually comprises medullary cords, but these are not the primary supportive structures of lymphatic cells. Instead, they are densely packed areas of immune cells, specifically lymphocytes and plasma cells, which are embedded in the reticular connective tissue framework. This structural organization allows for effective filtration and immune response.

Additionally, the other statements regarding lymph nodes are accurate. Lymph nodes are indeed drained by afferent lymphatic vessels that bring lymph to the nodes for filtration. They also contain phagocytic cells, such as macrophages, which play a crucial role in the immune response by capturing and destroying pathogens. Thus, the portrayal of lymphatic cells being supported by medullary cords is misleading regarding the correct structural arrangement and function of lymph nodes.