Human Body Defense

What is the body’s first line of defense?

• It is the inflammatory response of fluid and white

  blood cells.

• They're barriers to pathogens in the skin, breathing passages, the

  mouth, and stomach.

• It is the immune response.

What is the body’s second line of defense?

• They are barriers to pathogens in the skin, breathing passages, the

  mouth, and stomach.

• It is the immune

  response.

• It is the inflammatory response of fluid and white

  blood cells.

What is the body’s third line of defense?

• It is the immune

  response.

• It is the inflammatory response of fluid and white

  blood cells.

• They are i barriers to pathogens in the skin, breathing passages, the mouth, and stomach.

Tags

NGSS.HS-LS1-3

They are molecules that the immune system recognizes either as part of your body or as coming from outside your body.

• T cells

• B cells

• Antigen

• Phagocyte

Cells that identify pathogens and distinguish one from another are called

• T cells

• B Cells

• antibodies

• phagocyte

It is a white blood cell that engulfs and destroys pathogens

by breaking them down.

• b cell

• phagocyte

• T cell

• antigen

Tags

NGSS.MS-LS1-3

Proteins that help destroy a pathogen by binding onto its antigens are called

• B cells

• T cells

• antigen

• antibodies

The type of white blood cells that can distinguish between different kinds of pathogens are called

• B cell

• T Cell

• Lymphocyte

• antigen

During the this type of response capillaries widen in the area affected by pathogens.

• inflammatory response

• immune response

• The third line of defense