The painful swelling of lymph nodes in certain diseases is largely a result of the accumulation of:
Correct answer: B. Dead lymphocytes and macrophages
- A. Dead lymphocytes and microphages
- B. Dead lymphocytes and macrophages
- C. Living lymphocytes and microphages
- D. Living lymphocytes and macrophages
Explanation
The lymphatic system helps defend the body against foreign invaders. Lymph nodes have lymphocytes and macrophages that destroy bacteria and viruses. The painful swelling of lymph nodes in certain diseases (mumps in an extreme example) is largely a results of accumulation of dead lymphocytes and macrophages.
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About Circulation
The circulatory system covers the chambers, valves and conducting pathway of the human heart, along with the cardiac cycle and control of heartbeat. It compares arteries, veins and capillaries by structure and function, and explains how the lymphatic system returns tissue fluid, transports absorbed fats and supports immunity.
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