In unit 4 we studied immune system. The sells of our immune system discover and destroy foregn invaders, like bacteria or virus, that enter our bodies and may threaten our health. We learned that immune system cells defend out bodies by acting as a coordinated team. Specific molecules on their surfaces mediate the communication among immune system cells. In this animation we can see how one type of immune cell-the helper T cell- interprets a message (an antigen )presented at the surface of the cell membrane by MCH-II molecule. T cell will release many molecules of the protein interleukin-2 and after the series of processes in the cell there is a result -the production of many clones of the helper T cell. These indentical T cells can serve as a brigale forming an essential communication network to activate B cells, which make antibodies that will specifically attack the activating antigen.
http://www.hhmi.org/biointeractive/animations/tcell/tcell_print.htm
Subscribe to:
Post Comments (Atom)
I injoy your topic and how you summurize the animation article. You are also explaine about how our immune system fight against foregn invaders.
ReplyDelete