CK-12 Foundation
Ck 12: Life Science: 11.62 Humoral Response
Learn about the human body's immune response to pathogens.
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...
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.
CK-12 Foundation
Ck 12: The Lymphatic System
[Free Registration/Login may be required to access all resource tools.] Almost all of us have had a sore throat at some time. Maybe you had your tonsils out when you were younger? Why? Your tonsils are two lumps of tissue that work as...
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.
CK-12 Foundation
Ck 12: Biology: Lymphatic System
[Free Registration/Login may be required to access all resource tools.] Covers the role of the lymphatic system in the immune response.