Lymphatic System
Lymphatic System
The Lymphatic System (pronunciation: lim-FAT-ik SIS-tem) is a complex network of lymphoid organs, lymph nodes, lymph ducts, tissues, capillaries and lymph vessels that produce and transport lymph from tissues to the bloodstream. The Lymphatic System is a major part of the body's immune system.
Etymology
The term "Lymphatic" is derived from the Latin word 'lympha', which means 'connected to water', and the Greek word 'systema', meaning 'an organized whole'.
Function
The Lymphatic System has three main functions: it is responsible for the removal of interstitial fluid from tissues, it absorbs and transports fatty acids and fats as chyle from the digestive system, and it transports white blood cells to and from the lymph nodes into the bones.
Components
The Lymphatic System is made up of:
- Lymph: This is a fluid that contains white blood cells that defend against germs.
- Lymph vessels: These are carriers of lymph throughout the body.
- Lymph nodes: These are small structures that work as filters for harmful substances.
- Lymphoid organs: These include the adenoids, thymus, spleen, and tonsils.
Related Terms
- Lymphedema: This is a condition of localized fluid retention and tissue swelling caused by a compromised lymphatic system.
- Lymphoma: This is a group of blood malignancies that develop from lymphocytes (a type of white blood cell).
- Lymphocyte: This is a type of white blood cell in the vertebrate immune system.
External links
- Medical encyclopedia article on Lymphatic System
- Wikipedia's article - Lymphatic System
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