Key Functions of the Lymphatic System

Contributor: Cecilia Goodman, Holistic Practitioner

If you keep hearing about the lymphatic system, lymphatic drainage or lymphatic massage and you’re wondering, “What is it, why do I need it, but most importantly, what is lymph?” Then look no further.

What is Lymph?

Lymph or lymphatic fluid resembles blood plasma in composition.  This excess plasma-like substance; comprised of water, glucose, protein, fats, salt and other substances, seeps through the capillaries of the circulatory system and into various tissues of the body.  The lymphatic system collects this excess fluid now called lymph and ultimately returns it to the bloodstream. 

The lymphatic system consists of Lymph nodes, ducts and vessels as well as the spleen, thymus, tonsils, adenoid, Peyer’s patches and the appendix. 

The lymphatic system has 3 primary functions:

1. It maintains the fluid balance between blood and tissues, known as fluid homeostasis.

2. It forms part of the body’s immune system and defends the body from microorganisms and disease. Lymph nodes and other lymphatic organs filter the lymph to remove microorganisms and other foreign particles such as bacteria, viruses, parasites and fungi from the body. 

3. It facilitates the absorption of fats and fat-soluble nutrients in the digestive system. 

It is apparent why we need to be proactive in maintaining a healthy,  well functioning lymphatic system.  

Signs and symptoms of a potentially congested lymphatic system:

• Fatigue

• Dry, itchy skin

• Bloating

• Body stiffness, especially in the morning

• Brain fog

• Swollen glands

• Insidious weight gain

• Chronic sore throat, colds or ear issues

• Cellulite

  Unlike the circulatory system, the lymphatic system does not have an organ that pumps it’s fluid through the vessels towards a drainage point. 

The lymphatic system relies on pressure gradients that come from skeletal muscle action, respiratory movements and contraction of smooth muscle in vessel walls.  

How do I encourage movement and drainage of my lymphatic system?

• Regular exercise

• Lymphatic drainage massage

• Dry body brushing

• Stress management (meditation, breathing exercises)

Other ways we can maintain a healthy flowing and functioning lymphatic system are:

• Detoxing our environments by avoiding exposure to toxic chemicals like those in pesticides or cleaning products.  These chemicals can build up in our system and make it hard for our bodies to filter waste.  

• Stay hydrated so lymph can move easily through the body.  One of the most common causes of lymph congestion is dehydration.  

• Breath-work and meditative practices along with incorporating raw fruit and vegetables to our diet are powerful tools to help keep a healthy lymphatic system.  Enzymes, phytonutrients and fiber help breakdown toxins and free-radicals while promoting elimination.

A well functioning lymphatic system is vital in keeping us healthy, resilient and vibrant.