Blood and Immune System Review

Skin is part of the:

• 2nd line of defense

• 1st line of defense

• 3rd line of defense

White blood cells are part of the:

• 2nd line of defense

• 3rd line of defense

• 1st line of defense

Antibodies are part of the:

• 1st line of defense

• 2nd line of defense

• 3rd line of defense

The 1st line of defense involves:

• specific immunity

• non-specific immunity

The 2nd line of defense involves:

• specific immunity

• non-specific immunity

The 3rd line of defense involves:

• specific immunity

• non-specific immunity

The 1st line of defense is:

• internal

• external

The 2nd line of defense is:

• internal

• external

The 3rd line of defense is:

• internal

• external

A bacteria or virus:

• antibodies

• antigen

• pathogen

• antivirals