Human Lymphatic System Training Model

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Model Number: NH-00379

Brand: Niche Healthcare


1/2 x life size. This 1-part relief model depicts the human lymphatic system with utmost accuracy. Lymphatic vessels, ducts, and lymph nodes are easily identified on this medical-quality model. Significant structures are numbered and a key is included.

SKU: VS44927532 Category: Tag:


Categories         Anatomical Model

Subject               Medical Science

Material              Eco-friendly PVC

Application       School/Hospital/Laboratory


The human lymphatic system is a crucial part of the immune system and plays a vital role in maintaining fluid balance in the body, absorbing dietary fats, and protecting against infections. Here’s an overview of the key components and functions of the lymphatic system:

Key Components


A clear, colorless fluid that originates from interstitial fluid, which is the fluid surrounding cells. It contains white blood cells, especially lymphocytes, which are crucial for immune responses.

Lymphatic Vessels:

A network of thin tubes that carry lymph throughout the body. These vessels include lymphatic capillaries, which absorb excess interstitial fluid, and larger lymphatic vessels that transport lymph to lymph nodes and eventually to the bloodstream.

Lymph Nodes:

Small, bean-shaped structures located along the lymphatic vessels. Lymph nodes filter lymph and contain immune cells (lymphocytes and macrophages) that help in detecting and fighting infections.

Lymphoid Organs:

  • Tonsils: Located in the throat, they protect against pathogens entering through the mouth or nose.
  • Thymus: Located in the chest, it is where T lymphocytes (T cells) mature.
  • Spleen: Located in the upper left abdomen, it filters blood, removes old red blood cells, and helps fight infection.
  • Peyer’s Patches: Small masses of lymphatic tissue in the small intestine that monitor intestinal bacteria populations and prevent the growth of pathogenic bacteria.

Bone Marrow:

The spongy tissue inside bones where lymphocytes (B cells and T cells) are produced.


Fluid Balance:

The lymphatic system helps maintain fluid balance by collecting excess interstitial fluid (fluid that leaks out of blood vessels) and returning it to the bloodstream. This prevents the accumulation of fluid in tissues, which can cause swelling (oedema).

Immune Response:

The lymphatic system plays a key role in the body’s immune defines. Lymph nodes filter harmful substances from the lymph, and lymphoid organs provide sites for immune cells to communicate and mount responses against pathogens.

Lymphocytes, particularly B cells and T cells, are critical for adaptive immunity. B cells produce antibodies, while T cells can directly kill infected cells or help other immune cells respond.

Absorption of Dietary Fats:

The lymphatic system absorbs fats and fat-soluble vitamins from the digestive system through lymphatic vessels called lacteals located in the lining of the small intestine. These absorbed fats are transported as chyle, a milky fluid, to the bloodstream.

Circulation of Lymph

Lymphatic capillaries absorb interstitial fluid, which then becomes lymph.

Lymph is transported through progressively larger lymphatic vessels, passing through lymph nodes where it is filtered.

The lymphatic vessels eventually converge into larger ducts: the thoracic duct and the right lymphatic duct.

The thoracic duct drains lymph from most of the body into the left subclavian vein, while the right lymphatic duct drains lymph from the right upper body into the right subclavian vein, returning lymph to the bloodstream.

Health and Disease

Lymphedema: A condition where lymph accumulates in tissues, causing swelling. It can result from lymphatic system damage or blockages.

Infections and Cancer: Pathogens or cancer cells can spread through the lymphatic system, leading to swollen lymph nodes. Lymphoma is a type of cancer that originates in lymphocytes.

Autoimmune Disorders: Diseases where the immune system mistakenly attacks the body’s own tissues can also involve the lymphatic system.

In summary, the lymphatic system is integral to fluid balance, immune defence, and fat absorption. Its network of vessels, nodes, and organs works collaboratively to protect the body from infections, maintain tissue fluid levels, and transport nutrients.



What Organs Are In The Human Body?

What Organs Are In The Human Body?


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