Question

Describe the working of the lymph nodes.

Answer 1

Lymph Nodes:

1. Lymph nodes are numerous small swellings in the lymphatic system where lymph is filtered and the formation of lymphocytes occurs.
2. These are small bean-shaped glands that occur in clusters.

Working of Lymph Nodes:

1. Lymph nodes are known to filter substances that travel through the lymphatic fluid and contain lymphocytes, which help the body fight infection and disease.
2. Lymph nodes are connected to each other through lymph vessels.
3. Clusters of lymph nodes are found in the neck, chest, axilla, groin, and abdomen.
4. Lymph nodes contain two types of white blood cells which are B lymphocytes and T lymphocytes.
5. B lymphocytes produce antibodies that help in fighting bacteria, fungi, viruses, and other infectious particles.
6. T lymphocytes are the activators of an adaptive immune response.
7. When a foreign agent gets trapped, the body responds to inflammation due to an activated immune response. As a result lymph nodes get swelled up.
8. The different types of lymph nodes are cervical lymph nodes, axillary lymph nodes, supraclavicular lymph nodes, mediastinal lymph nodes, inguinal lymph nodes, retroperitoneal lymph nodes, mesenteric lymph nodes, and pelvic lymph nodes.
9. When a lymph node is infected and becomes swollen, it is referred to as lymphadenitis.