Question

Design and submit a concept map on what you have learned. It should include concepts and connections between concepts including: 1. Structures and function of the Immune System 2. Types of white blood cells and their function 3. Other organs associated with immunity 4. HIV

Answer 1

There are two type of immunity

1)Cell mediated immunity-mainly by Helper T cells(CD4 cells)-

2)Humoral immunity-end result is activation of Plasma cells and production of antibodies

2 wbc is of mainly two types ------

Agranulocyte-Lymphocyte(T cells and B cells which later produce plasma cells)

Monocyte-Phagocytosis of large antigen and particles

Granulocyte-Neutrophil(usually involved in any acute inflammatory condition)

Basophil(Release of histamines)

Eosinophil(mainly involved in allergic reactions)

3 Other organs involved are Bone Marrow , Thymus,Spleen,MALT(mucosa assosciated lymphoid tissue)

4 In HIV organism enters cells like T lymphocyte and kills it and hence there is decrease of CD4 count .There is rapid decrease in patients immunity and he is more prone for oppurtunistic infections like oral candidiasis.