How the Immune System Works with a Diagram

lymphatic_systemInside your body there’s a magnificent mechanism called the immune system.

How the immune system works along with the lymph system is very complex. But here’s a simple way to understand immune power.

The purpose of your immune system is to fight for your health and defend you against all of the many viruses, bacteria, microbes, parasites and toxins that are just chomping-at-the-bit to take over your body.

Want to know what a great job your defense system is doing right now?

Once a person’s lymph and immune system are gone (when they die) the invasion of these parasitic and microbial body snatchers begins. And within just a few weeks there will be nothing left but a skeleton!

What is the Immune System to Your Health?

Now that you fully appreciate the immune power within you, let’s simplify what it is and how the immune system works to protect you.

The lymphatic system is part of your immune system. The two work together to protect you from illness and disease. The lymph diagram below shows you the vast lymphatic network running throughout your body.

Lymph is a clear fluid that carries white blood cells through the lymph vessels all around your body to help fight infection and disease.

The watery lymph fluid bathes your tissues and distributes nutrients to your cells. After nourishing cells, lymph collects waste and foreign materials and carries them to lymph nodes to filter out harmful microbes and toxins.

Lymph nodes are in the neck, armpit, groin, chest, abdomen and all around the body. They often swell when they’re actively fighting infection.

The Lymphatic System and Lymph Diagram


Your immune system is made up of a complex army of soldiers. They include lymph, spleen and thymus glands, prostaglandin and histamine, bone marrow and a trillion different cells, such as T cells.

But your skin is the largest component of the immune system. It’s like the fort wall that works as a barrier, using natural acidity to stop invading harmful pathogens, bacteria, fungi and viruses from breaking in.

How the Immune System Works for Your Health

All the components of your immune system act synergistically to protect your body from invasion. It’s your own private department of defense.

Immune warriors are in combat 24-7 fighting off vicious invaders trying to take over your body. Microbial bacteria, viruses, parasites and toxins are lurking everywhere, with devious methods of sneaking inside you.

They slither in past mucous membrane sentries in your eyes, nose and mouth or through openings, like cuts in your skin. They stealthily hover in air you breathe or hide out in food you eat or water you drink.

If pathogens should make it through your mouth or nose and get into your stomach, they have to survive a microorganism torture chamber of being dissolved by digested enzymes and churned up in stomach acid.

Sometimes you feel an attack almost immediately, as with a cold, virus or bacteria infection. But then there are also the sneakier invaders.

These are the millions of toxins that use chemical warfare to slowly and secretly poison the body. When this happens you don’t feel a thing, until years later when disease shows up as cancer or heart disease.

All these invaders are out to ravage your skin and other organs, cripple your body and destroy your health. To protect yourself and live a long healthy life, learn how to boost your immune system health.

More Commonsense Health for You:
List of Healthy Foods for Healthy Eating
How to Boost Your Immune System Health
Natural Anti-Aging Antioxidants Health Benefits
Probiotics, Prebiotics and Probiotics Health Benefits


  1. Marie says

    Wow! I truly appreciate this article. I seeking better understanding of my immune system and ways to strengthen it. Recently I had a bacteria infection/flu and shortly after my lymph node under one side of my chin has swollen. There is a lump there and I am looking for a natural healthy way to correct it. Thank you very much for the information.

    • says

      You’re welcome, Marie! And if you haven’t already done so, please check the helpful links at the bottom of the article. Building your immune system will go a long way towards overcoming your current challenge…and preventing many more challenges in the future. :-)

    • says

      Hi Mona! Thanks for your question. I’ve got to say, if someone has fat around their liver, then there’s a very good chance they have fat around all of their internal organs and, to an extent, deposited throughout their tissues. The best way to answer your question is to direct you to my Weight Loss section. You’ll find a lot of great suggestions there.

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