OpenStax
Open Stax: Anatomy & Physiology: Adaptive Immune Response: T Lymphocytes
With these learning exercises, students explain the advantages of the human adaptive immune response over the innate immune response including the types of T cells, development, and their functions.
Biology Pages
Kimball's Biology Pages: T Helper Cells
A good site devoted to the T-cell and its role in the immune response. Complete coverage including vocabulary links throughout.
Biology Pages
Kimball's Biology Pages: B Cells and T Cells
A very strong overview of cell mediated immunity and the roles of the different cells within the system.
PBS
Pbs: The Immune System's Battle Against Disease
A "just for fun" Shockwave game that allows you to control an animated macrophage against an invading virus. You must figure out how the let the Helper T-cells get involved.
Cells Alive
Cells Alive: How Lymphocytes Produce Antibody
Learn about how the immune system works. Topics include antigens and antibodies.
CK-12 Foundation
Ck 12: Biology: Cell Mediated Immune Response
[Free Registration/Login may be required to access all resource tools.] Describes the roles of T cells in a cell-mediated immune response.
CK-12 Foundation
Ck 12: Life Science: B and T Cell Response
[Free Registration/Login may be required to access all resource tools.] Some defenses, like your skin and mucous membranes, are not designed to ward off a specific pathogen. They are just general defenders against disease. Your body also...
Arizona State University
Arizona State University School of Life Sciences: Viral Attack
There are battles that are fought each day on the planet. The invading forces are those of viruses and bacteria. Left alone they would take over and destroy every cell! It is up to some key defense systems to battle and destroy these...
Wikimedia
Wikipedia: Helper T Cell
This encyclopedia article from Wikipedia on helper T cells discusses what Helper T cells are and the function of the CD4 protein.
Other
Hon: Helper T Cell
A very short, but decent, introduction to the function of the memory cells, this page has abundant links to vocabulary help.