The main types of immune cells are white blood cells. There are two types of white blood cells â lymphocytes and phagocytes. When weâre stressed, the immune systemâs ability to fight off antigens is reduced.That is why we are more susceptible to infections.here are two types of lymphocytes : B cells-produce antibodies which are released into the fluid surrounding the bodyâs cells to destroy the invading viruses and bacteria. T cells (see picture opposite) - if the invader gets inside a cell, these (T cells) lock on to the infected cell, multiply and destroy it.
Editor's Description: Introduction to Art: Design, Context, and Meaning offers a comprehensive introduction to the world of Art. Authored by four USG faculty members with advance degrees in the arts, this textbooks offers up-to-date original scholarship.
Writing About Art. Considering a work of art in terms of the life of the person who made it creates one kind of historical context. There are many other ways to relate a work to history, though, involving different elements of the period from which it came. One of them is an iconographic analysis, which establishes the meaning a work of art had at the time it was made. This may or may not include what the maker of the work intended or, usually a more important factor, what the person who paid for the work wanted.