Immune System

What is the body's first line of defense against infection by foreign organisms?

• antibodies

• lymph nodes

• white blood cells

• the skin

Disease-causing microorganism, such as a bacterium or virus.

• pathogen

• allergen

• prion

• antigen

A nonspecific defensive response of the body to tissue injury characterized by dilation of blood vessels and swelling.

• immunity

• interferon

• immunization

• inflammation

Which of the following is not apart of your body’s first line of defense?

• Skin

• Mucus

• Stomach Acid

• Antibodies

This type of cell inspects cells for antigens and kills any cells that display the foreign antigens.

• Skin

• T Cells

• B Cells

• Hemoglobin

What do antibodies attach to on the pathogen?

• Anti inflammatory

• Antigens

• Antiseptic

• Antibodies

What do B cells produce?

• antigens

• macrophages

• T cells

• antibodies

What is a vaccine?

• A weakened pathogen injected in the body to produce immunity

• Temporary immunity that develops as natural exposure

• An overreaction of the immune system

• Medicine that helps after you're infected

A white blood cell that destroys pathogens by engulfing them and breaking them down is called:

• B-cell

• Phagocyte

• Antibody

• Antigen

A molecule that the immune system uses to recognize things as either part of the body or as coming from outside the body:

• Antigen

• Antibodies

• Antibiotics

• Antipaths