Question

What is the immune system?

Answer 1

Immune system:

1. Lymphoid organs (such as bone marrow, thymus, spleen, and lymph node), tissues, cells, and soluble molecules like antibodies make up the human immune system.
2. Foreign antigens are recognized, responded to, and remembered by the immune system.
3. The immune system plays a critical role in allergic reactions, auto-immune disorders, and organ transplantation.