Home > Anatomy > Tissues > Lymphoid Tissue Terms and Definitions
Lymphoid Tissue
| Definition: |
Specialized tissues that are components of the lymphatic system. They provide fixed locations within the body where a variety of LYMPHOCYTES can form, mature and multiply. The lymphoid tissues are connected by a network of LYMPHATIC VESSELS. |
| Notes: |
/radiogr permitted: not necessarily LYMPHOGRAPHY |
Lymphoid Tissue Categories.
 |
Adenoids |
|
Bursa of Fabricius - An epithelial outgrowth of the cloaca in birds similar to the thymus in mammals. It atrophies within 6 months after birth and remains as a fibrous remnant in adult birds. It is composed of lymphoid tissue and prior to involution, is the site of B-lymphocyte maturation. |
|
Germinal Center - The activated center of a lymphoid follicle in secondary lymphoid tissue where B-LYMPHOCYTES are stimulated by antigens and helper T cells (T-LYMPHOCYTES, HELPER-INDUCER) are stimulated to generate memory cells. |
|
Lymph Nodes - They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system. |
|
Peyer's Patches - Lymphoid tissue on the mucosa of the small intestine. |
|
Spleen |
Lymphoid Tissue Definitions and Terms
MedicalGlossary.org is designed as a free, browsable resource for all. The medical terms and definitions are not intended to replace medical informaion provided by licensed healthcare professionals. Please see a doctor if you need medical assistance. Don't see the medical term you were researching? Send us an e-mail from our "about us" page. We will do our best to research and classify new medical terms in a timely manner. Our current list of medical terms is over 26,000. Data sources include the U.S. National Library of Medicine, 2004 Medical Subject Headings.
|
