Once tissue is damaged, which step occurs first during inflammation?

This cytokine is needed to switch antibody isotopes to IgE and needed for helper T cell differentiation.

Which of the following is an example of a secondary lymphoid tissues?

Which of the following is an example of a primary lymphoid tissues?

A patient has a defect in PhoX. Predict you would expect to see in the patient.

These immune cells play a role in allergies and parasitic infections. These cells are not phagocytes.

To start the immune process, ____________________________ must bind to macrophages on their __________________.

Phospholipids breakdown to lead to the formation of arachidonic acid. This will activate the production of these mediators in macrophages.

In this technique, antigen are added into a well in an agar plate to react to the antibodies in the agar.  When the antigen interactions with antibodies, complexes form and precipitate out of solution to form precipitin rings.

Once B cells are activated in the lymph node, they are located in these structures.