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The thymus (pl.: thymuses or thymi) is a specialized primary lymphoid organ of the immune system.Within the thymus, thymus cell lymphocytes or T cells mature. T cells are critical to the adaptive immune system, where the body adapts to specific foreign invaders.
The hypothalamus, pancreas, and thymus also function as endocrine glands, among other functions. (The hypothalamus and pituitary glands are organs of the neuroendocrine system . One of the most important functions of the hypothalamus—it is located in the brain adjacent to the pituitary gland—is to link the endocrine system to the nervous ...
English: ThymiStem in collaboration with animator Cameron Duguid have created a beautiful, hand drawn animation explaining the function of the thymus, an essential organ of the immune system. The video shows how T cells, a type of white blood cell, go through a complex journey in the thymus to become mature immune cells ready to fight off ...
Thymus stromal cells are subsets of specialized cells located in different areas of the thymus. [1] They include all non-T-lineage cells, such as thymic epithelial cells (TECs), endothelial cells, mesenchymal cells, dendritic cells, and B lymphocytes, and provide signals essential for thymocyte development and the homeostasis of the thymic stroma.
Histology of the thymus showing the cortex and medulla Minute structure of thymus. The ability of T cells to recognize foreign antigens is mediated by the T cell receptor (TCR), which is a surface protein able to recognize short protein sequences ( peptides ) that are presented on MHC .
Thymic involution is the shrinking of the thymus with age, resulting in changes in the architecture of the thymus and a decrease in tissue mass. [1] Thymus involution is one of the major characteristics of vertebrate immunology, and occurs in almost all vertebrates, from birds, teleosts, amphibians to reptiles, though the thymi of a few species of sharks are known not to involute.
On Monday, Jan. 20, former and future President Donald Trump will take the oath of office and return to the White House. Any historical event as significant as a U.S. presidential inauguration is ...
The final anatomical location of the thymic gland is reached at 6 weeks in the fetus. TECs originate from non-hematopoietic cells that are characterized by negative expression of CD45 and positive expression of EpCAM. Then TECs are divided into two phenotypically and functionally different groups that have distinct location, cytokeratin ...