- Leukocytes directly attack the invader.
- Antibodies either damage the invaders directly, or alert leukocytes to mount an attack.
The Immune Sytem – Our "First Line of Defense"
Maintaining a healthy immune system is the key to staying healthy and fighting cancer and all other degenerative disease. If your immune system is functioning properly, your body has no other choice but to stay healthy. That's the way God made our bodies. It's only when the immune system is compromised that we succumb to sickness and disease. The immune system is a collection of cells, chemical messengers, and proteins that work together to protect the body from potentially harmful, infectious microbes such as bacteria, viruses, and fungi; thus, the immune system plays a role in the control of cancer and other diseases. Our remarkable immune system is composed of "leukocytes" (white blood cells), "antibodies" (proteins in the blood), the thymus, spleen, and liver. It even has its own network of vessels (the lymphatic system) which drains waste products from tissues and transports it from lymph node to lymph node where macrophages (literally "big eaters") filter out debris. Leukocytes are the body's "first line of defense." When foreign "invaders" enter the body, our immune system comes to the rescue in two ways: