Immunology - Lines of Defense

In the first video on the Immune System, That Bio Doc introduces you to the three lines of defense that help protect you from pathogens and fight off infections. TBD discuss the barriers that help to prevent infections and the cellular, chemical, and physical responses your body undertakes to fight infections. This is the first in a series of videos about our immune system. It is recommended that you view these videos in the proper order to maximize your learning.