Question

The chief function of lymph nodes in mammalian body is to:

• A. destroy the old and worn out red blood cells
• B. produce WBC's
• C. collect and destroy pathogens
• D. produce a hormone

Answer 1

The correct option is C

collect and destroy pathogens

Correct answer is option C.

Explanation for correct option:

1. Lymph nodes serve two major functions in the body.
2. They filter lymph and assist the immune system in building immune responses.
3. They are major sites where the immune cells interact with the antigens.
4. They act as filters or traps for foreign particles or pathogens and these regions are tightly packed with white blood cells and macrophages which can attack them.

Explanation for incorrect options:

Option A:

The old and worn out Red blood cells are destroyed in the spleen and liver.

Option B:

White blood cells are made in the bone marrow and are stored in your blood and lymph tissues.

Option D:

Endocrine glands are special groups of cells which make hormones.

Final answer: The chief function of lymph nodes in the mammalian body is to collect and destroy pathogens.