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What are the skin macrophages that help activate the immune system?
Epidermal dendritic cells
Which cell is known as antigen presenting cell?
Dendritic cells,macrophages, B cells
What type of lymphocyte is concentrated in the germinal centers?
3 types: Dendritic cells, B cells and CD4+ T cells.
What type of cells are found in the germinal centers of lymph nodes?
B Cells, Follicular dendritic cells and Helper T cells.
What cells express MHC class II molecules?
There are two classes of MHC. MHC I are expressed in all cells except red blood cells (because they lack nuclei). MHC I andMHC II are expressed in professional antigen presenting cells (APC's) that include :macrophages, dendritic cells and B cells.
What are epidermal dendritic cells?
Langerhans cells
How many cells are in white blood cells?
There are seven (7) main types of white blood cells. These are the Neutrophil, Eosinophil, Basophil, Lymphocyte, Monocyte, Macrophage, and Dendritic cells.-Neutrophils- Target bacterial and fungal pathogens.-Eosinophils- Target larger parasites and modulate allergic inflammatory response-Basophils- Release histamines for inflammatory response-Lymphocytes- There are three (3) subtypes of lymphocytes:-B Cells- Release Antibodies and assist activation of T Cells-T Cells-Th (Helper) T Cells- Activate and regulate T and B cells-CD8+ Cytotoxic T Cells- Target virus infected and tumor cells -Gamma Delta T Cells (γδ T cells)- Help modulate adaptive immunity-Suppressor T Cells- Returns immune system to regular state after destruction of pathogen-Natural Killer Cells- Target virus infected and tumorous cells in conjunction with CD8+ Cells-Monocytes- Divide into Macrophages and Dendritic Cells and serve as a carrier of Macrophages and Dendritic Cells to site of immune activity.-Macrophages- Phagocytosis (Cell Eating or Consumption) of foreign particles such as debris or pathogenic agents. They also stimulate lymphocytes to respond to a pathogen.-Dendritic Cells- Activate T-Lymphocytes
Are B cells are activated with the help of TH2 cells?
Yes, Th2 cells activate B cells with mostly cytokines IL-4, IL-5, IL-10. Some B cells can activate without the help of Th2 cells, however, there are certain requirements for this such as repeated epitope.
What cells do helper T-cells activate?
If im correct, helper t-cells activate: b-cells that mark viruses and make them stick together, killer t-cells --which attack macrophages and infected cells, and memory b-cells, which remember how to stop viruses, this i believe is called active immunity
What do the helper t-cells activate?
If im correct, helper t-cells activate: b-cells that mark viruses and make them stick together, killer t-cells --which attack macrophages and infected cells, and memory b-cells, which remember how to stop viruses, this i believe is called active immunity
Which of these does not belong Langerhans cells epidermal dendritic cells keratinocytes immune cells?
Keratinocytes
How do T cells and B cells of your immune system respond to pathogens?
T cells's primary task is to activate B cells and killer T cells. The B cells searchfor antigens matching its receptors. If it finds such antigen it connects to it, and inside the B cell a triggering signal is set off.
