Tertiary Lymphoid Organs and Their Functions
Tertiary lymphoid organs contain very few lymphocytes and are generally found at the chronic inflammation sites in case of autoimmune diseases such as rheumatoid arthritis. These organs also play an important role in generating immune response to cancer.
Lymphatic Vessels
Lymphatic vessels are a network of thin-walled ducts that interconnect the lymphoid organs through which lymph circulates. They are also called lymph vessels. They maintain the unidirectional flow of lymph through them by several lymphatic mini-valves.
Lymph
Lymph is a clear, yellow-colored extra interstitial fluid consisting of water (about 95% water) along with plasma proteins, glucose fatty acids, ions, lymphocytes, macrophages, and other trace elements. It helps to transport nutrients, lymphocytes, antibodies, metabolic wastes, and cellular debris. It also promotes intercellular communication.
What Are Lymphoid Organs?
Lymphoid organs are part of the lymphatic system that performs many immunological functions. The lymphatic system is comprised of organs, vessels, lymph nodes, and lymph. Lymphoid organs are mainly of two types-primary and secondary lymphoid organs. The primary lymphoid organs or the central lymphoid organs such as bone marrow and thymus are the site of the maturation of lymphocytes. In contrast, the secondary lymphoid organs, also known as peripheral lymphoid organs like spleen, lymph node, etc. are associated with the initiation of adaptive immune response. In this article, we will explore lymphoid organs, types, and differences between primary and secondary lymphoid organs.
Table of Content
- What are Lymphoid Organs?
- Types of Lymphoid Organs
- Primary Lymphoid Organs and their Functions
- Secondary Lymphoid Organs and their Functions
- Tertiary Lymphoid Organs and their Functions
- Internal and External Lymphoid Organs
- Differences Between Primary and Secondary Lymphoid Organs
- What is the Function of the Lymphoid Organs?
- Diseases Associated with Lymphoid Organs