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Page "Lymphatic system" ¶ 7
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lymphoid and tissue
Canine distemper virus ( CDV ) is known to cause apoptosis in central nervous system and lymphoid tissue of infected dogs in vivo and in vitro.
It contains the least of lymphoid tissue.
It is a part of mucosa-associated lymphoid tissue, which gives the appendix an important role in immunity.
The pharyngeal tonsils, more commonly referred to as the adenoids, are lymphoid tissue structures located in the posterior wall of the nasopharynx.
On the posterior wall is a prominence, best marked in childhood, produced by a mass of lymphoid tissue, which is known as the pharyngeal tonsil.
The lymphatic system can be broadly divided into the conducting system and the lymphoid tissue.
Regions of the lymphoid tissue that are densely packed with lymphocytes are known as lymphoid follicles.
Lymphoid tissue can either be structurally well organized as lymph nodes or may consist of loosely organized lymphoid follicles known as the mucosa-associated lymphoid tissue ( MALT ).
The lymphoid tissue may be primary, secondary, or tertiary depending upon the stage of lymphocyte development and maturation it is involved in.
( The tertiary lymphoid tissue typically contains far fewer lymphocytes, and assumes an immune role only when challenged with antigens that result in inflammation.
Secondary lymphoid tissue provides the environment for the foreign or altered native molecules ( antigens ) to interact with the lymphocytes.
that are associated with the mucosa-associated lymphoid tissue ( MALT ).
A lymph node is an organized collection of lymphoid tissue, through which the lymph passes on its way to returning to the blood.
* While the length of the intestinal tract contains lymphoid tissue, only the ileum has abundant Peyer's patches, unencapsulated lymphoid nodules that contain large numbers of lymphocytes and other cells of the immune system.
* While the length of the intestinal tract contains lymphoid tissue, only the ileum has abundant Peyer's patches, unencapsulated lymphoid nodules that contain large numbers of lymphocytes and other cells of the immune system.
Although it was long accepted that the immune tissue, called gut associated lymphoid tissue, surrounding the appendix and elsewhere in the gut carries out a number of important functions, explanations were lacking for the distinctive shape of the appendix and its apparent lack of importance as judged by an absence of side effects following appendectomy.

lymphoid and is
The lymphoid lineage is primarily composed of T-cells and B-cells ( types of white blood cells ).
In turn, it is part of the even broader group of diseases affecting the blood, bone marrow, and lymphoid system, which are all known as hematological neoplasms.
Viral conjunctivitis, commonly known as pink eye, shows a fine, diffuse pinkness of the conjunctiva, which is easily mistaken for the ciliary injection of iritis, but there are usually corroborative signs on microscopy, particularly numerous lymphoid follicles on the tarsal conjunctiva, and sometimes a punctate keratitis.
The NALP1 gene, which is on chromosome 17 located at 17p13, is on a cascade that regulates inflammation and cell death, including myeloid and lymphoid cells, which are white cells that are part of the immune response.
Typically, lymphoma is present as a solid tumor of lymphoid cells.
It is exemplified by the lymph nodes, and the lymphoid follicles in tonsils, Peyer's patches, spleen, adenoids, skin, etc.
The substance of a lymph node consists of lymphoid follicles in the outer portion called the " cortex ", which contains the lymphoid follicles, and an inner portion called " medulla ", which is surrounded by the cortex on all sides except for a portion known as the " hilum ".
The appendix is experimentally verified as being rich in infection-fighting lymphoid cells, suggesting that it might play a role in the immune system.
however, the most likely source is shedding from the gut-associated lymphoid tissue.
TdT is expressed only in lymphoid tissue, and adds " n nucleotides " to double-strand breaks formed during V ( D ) J recombination to promote immunological diversity.
TNF was thought to be produced primarily by macrophages, but it is produced also by a broad variety of cell types including lymphoid cells, mast cells, endothelial cells, cardiac myocytes, adipose tissue, fibroblasts, and neuronal tissue.
On the posterior wall is a prominence, best marked in childhood, produced by a mass of lymphoid tissue, which is known as the pharyngeal tonsil.
The palatine tonsil is one of the mucosa-associated lymphoid tissues ( MALT ), located at the entrance to the upper respiratory and gastrointestinal tracts to protect the body from the entry of exogenous material through mucosal sites.
B-cell chronic lymphocytic leukemia ( B-CLL ), also known as chronic lymphoid leukemia ( CLL ), is the most common type of leukemia.
It is a malignancy that produces enlargement of lymphoid tissue, spleen, and liver, with invasion of other tissues.

lymphoid and primarily
The term hematopoietic system refers to tissues and organs that produce and / or primarily host hematopoietic cells and include bone marrow, lymph node, thymus, spleen, and other lymphoid tissues.

lymphoid and involved
The thymus and the bone marrow constitute the primary lymphoid tissues involved in the production and early selection of lymphocytes.

lymphoid and immune
The key primary lymphoid organs of the immune system are the thymus and bone marrow, and secondary lymphatic tissues such as spleen, tonsils, lymph vessels, lymph nodes, adenoids, and skin and liver.
Secondary or peripheral lymphoid organs maintain mature naive lymphocytes and initiate an adaptive immune response.
* Clonal Deletion theory, proposed by Burnet, according to which self-reactive lymphoid cells are destroyed during the development of the immune system in an individual.
The tonsils contain four lymphoid compartments that influence immune functions, namely the reticular crypt epithelium, the extrafollicular area, the mantle zones of lymphoid follicles, and the follicular germinal centers.
Once activated, they mature and migrate to the lymphoid tissues where they interact with T cells and B cells to initiate and orchestrate the adaptive immune response.
In addition, dendritic cells can influence the type of immune response produced ; when they travel to the lymphoid areas where T cells are held they can activate T cells, which then differentiate into cytotoxic T cells or helper T cells.
Dendritic cells ( DCs ), which are the primary antigen-presenting cells ( APCs ), of the donor tissue migrate to the recipient's peripheral lymphoid tissue ( lymphoid follicles and lymph nodes ), and present the donor's self peptides to the recipient's lymphocytes ( immune cells residing in lymphoid tissues ).
Because of its relation to gut-associated lymphoid tissue ( GALT ), L. acidophilus LA-5 has been associated with positive effects on the immune system such as increased cytokine, phagocytic activity and antibody production, as well as phagocytosis of Salmonella, and L. acidophilus NCFM has even been shown to reduce incidence of symptoms of fever, cough and runny nose.
Although important in the immune response, excessive growth of lymphoid tissue in Peyer's patches is pathologic, as hypertrophy of Peyer's patches has been closely associated with idiopathic intussusception.
The HSC generates the lymphoid ( B cells and T cells of our immune system ) cell line and the myeloid cell lines.
Food antigens contact the immune system throughout the intestinal tract via the gut associated lymphoid system ( GALT ), where interactions between antigen presenting cells and T cells direct the type of immune response mounted.
The immune modulating effect of RIGVIR refers to the activation of lymph nodes, lymphoid tissues and immune cells.

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