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This blog was designed for the Biomedical Technology students at the Durban University of Technology, in Durban, South Africa. It consists of short notes on aspects that I feel that my students grapple with, and aims to provide a better explanation than that they would receive in lectures. It is also a very personal blog, where I feel comfortable 'talking' to my students.

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Thursday, July 28, 2011

immune cells

The cells involved in the immune response are called immune cells lol. They can be classified into granulocytes and agranulocytes. Granulocytes are so called because they have ___________ and agaranulocytes have no ________.
Examples of granulocytes are neutrophils, basophils, eosinophils. Examples of agranulocytes are lymphocytes, which can be further classified into T cells and B cells.
question: draw simple unlabelled diagrams to show the differences between each type of cell named above
What cell is often called a PMN? And what does PMN stand for?

T cells are involved in cell mediated immunity (CMI) whilst B cells are involved in humoral immunity (HI). Humoral immunity makes use of Ab to eliminate Ag whilst CMI uses cells to kill Ag. There are different types of T cells, Tc Ts Th and NK cells. Tc is a cytotoxic T cell, Ts is a suppressor T cell, Th is a helper T cell and NK is a natural killer cell. A Tc cell kills, a Ts suppresses or stops the IR, a Th is required to start the IR and the NK cell does what it says, it just kills. All it needs is something to kill.
B cells do not produce Ab. B cells differentiate into plasma cells which produce Ab

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