Which of the following types of cells are antigen presenting cells? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Only eosinophils b Question Homework Unanswered с d e Platelets and macrophages Only macrophages Only neutrophils Macrophages and dendritic cells
Which of the following types of cells are antigen presenting cells? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Only eosinophils b Question Homework Unanswered с d e Platelets and macrophages Only macrophages Only neutrophils Macrophages and dendritic cells
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Antigen presenting cells(APCs)
These are special cells which includes macrophages, B lymphocytes, and dendritic cells, are distinguished by 2 properties:
- They express class ll MHC molecules on their membranes, and
- They are able to deliver a co-stimulatory signal that is necessary for TH cell Activation.
Role of an antigen presenting cell(APC
- Phagocytosis of enemy cell(antigen).
- Fusion of lysosome and phagosome.
- Enzymes start to degrade enemy cell.
- Enemy cell broken into small fragments.
- Fragments of antigen presented on APC surface.
- Leftover fragments released by exocytosis.
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