Which of these cells are most numerous at the site of a chronic infection?

The unresponsiveness of our lymphocytes to our own body cells is called __________.

Which of these proteins are released by virus-infected cells and help protect surrounding uninfected cells.

The body’s first line of defense against disease consists of __________.

Marisol is calling her boyfriend Felipe to tell him how her day was. Listen to the conversation and fill in the blanks to provide the missing information.  

The ability of antibodies to block specific sites on pathogens so that they cannot bind to cell receptors is called __________.

Which of the following is NOT part of the respiratory membrane of the lungs?

Lymphatic capillaries are NOT found in all of the following except __________.

The first antibody class to be released into the bloodstream during an immune response is __________.

This cell mediates the body’s cellular immune response.