Ch 22 The Lymphatic System and Immunity

The first line of defense of innate immunity against pathogens consists of the what and what; the second line of defense consists of what, what, and what.

skin

mucous membranes

antimicrobial proteins

natural killer cells

phagocytes

Substances that are recognized as foreign and provoke immune responses are known as what.

antigens

T/F
Your body’s ability to ward off damage or disease through your defenses is known as resistance; vulnerability to disease is susceptibility.

T

T/F

Your T cells must be able to recognize your own MHC molecules, a process known as self-recognition, and lack reactivity to peptide fragments from your own proteins, a condition known as self-tolerance.

T