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  2. WHO classification of tumours of the central nervous system

    en.wikipedia.org/wiki/WHO_classification_of...

    9.1.2.2 Other low-grade B-cell lymphomas of the CNS 9.1.2.3 Anaplastic large cell lymphoma (ALK+/ALK−) 9.1.2.4 T-cell lymphomas and NK/T-cell lymphomas 9.2 Histiocytic tumors 9.2.1 Erdheim–Chester disease 9.2.2 Rosai–Dorfman disease 9.2.3 Juvenile xanthogranuloma 9.2.4 Langerhans cell histiocytosis 9.2.5 Histiocytic sarcoma

  3. K-5 (education) - Wikipedia

    en.wikipedia.org/wiki/K-5_(education)

    K-5 (pronounced "kay through five") is an American term for the education period from kindergarten to fifth grade. It receives equal amounts of criticism and support in the educational industry. It receives equal amounts of criticism and support in the educational industry.

  4. Nerve injury classification - Wikipedia

    en.wikipedia.org/wiki/Nerve_Injury_Classification

    Sunderland's fifth-degree is included within Seddon's neurotmesis. Fifth-degree lesion is a complete transection of the nerve, including the epineurium. Recovery requires appropriate surgical treatment.

  5. List of primary education systems by country - Wikipedia

    en.wikipedia.org/wiki/List_of_primary_education...

    Subjects usually taken up include Communication Arts in Mother Tongue (until Grade 3), English (some private schools break this down into Language and Reading) and Filipino, Mathematics, Science, Social Studies (taught in Mother Tongue from Grade 1-Grade 3, Filipino in Grades 4-6), Music, Art, Physical Education and Health (collectively known ...

  6. Fifth grade - Wikipedia

    en.wikipedia.org/wiki/Fifth_grade

    Fifth grade (also 5th Grade or Grade 5) is the fifth or sixth year of formal or compulsory education. In the United States, this is mostly the last grade of primary school, but for some states, it could be the first year of middle school. Primary school generally goes from Kindergarten and ends in fifth or sixth grade. Students in fifth grade ...

  7. Parafollicular cell - Wikipedia

    en.wikipedia.org/wiki/Parafollicular_cell

    Parafollicular cells are derived from pharyngeal endoderm. [2] [3] Embryologically, they associate with the ultimopharyngeal body, which is a ventral derivative of the fourth (or fifth) pharyngeal pouch. Parafollicular cells were previously believed to be derived from the neural crest based on a series of experiments in quail-chick chimeras.

  8. Trypsinization - Wikipedia

    en.wikipedia.org/wiki/Trypsinization

    Trypsinization is the process of cell dissociation using trypsin, a proteolytic enzyme which breaks down proteins, to dissociate adherent cells from the vessel in which they are being cultured. When added to cell culture, trypsin breaks down the proteins that enable the cells to adhere to the vessel.

  9. Chromaffin cell - Wikipedia

    en.wikipedia.org/wiki/Chromaffin_cell

    Chromaffin cells, also called pheochromocytes (or phaeochromocytes), are neuroendocrine cells found mostly in the medulla of the adrenal glands in mammals.These cells serve a variety of functions such as serving as a response to stress, monitoring carbon dioxide and oxygen concentrations in the body, maintenance of respiration and the regulation of blood pressure. [1]