The Immune System 1

Which of the following offers the human body initial protection from disease-causing agents (a first line of defense)?

• the stomach

• the brain

• the skin

• the intestines

This non-specific, second line of defense is part of the body's immune response and causes your internal body temperate to rise above 98.6 degrees, which can kill many pathogens while not harming the body's own cells.

• mucus membrane secretions

• inflammatory response.

• fever

• B cells making antibodies

After an initial infection, B-cells recognize the measles virus. How is this helpful in human immune response?

• The B-cells use this recognition to defend the body against other pathogens, such as bacteria.

• The B-cells more quickly recognize and respond to any other virus that invades the body.

• The B-cells produce antibodies more quickly if the measles virus is encountered again.

• The B-cells transfer this recognition to T-cells which will then devour the viruses.

Your body's first lines of defense against disease includes all of the following EXCEPT

• skin

• B-cells

• mucous membranes

• secretions from mucous membranes

An example of a specific defense (adaptive immunity) is

• the skin acting as a barrier to the outside of the body.

• the inflammatory response as a result of getting pricked by a thorn.

• the development of a fever during an infection.

• the development of antibodies by B-cells during an infection.

Which types of cells make antibodies to pathogens?

• macrophages

• B cells

• T cells

• bacterial cells

This non-specific, second line of defense is part of the body's immune response and causes blood to rush to the site of an injury.

• mucus membrane secretions

• inflammatory response.

• fever

• B cells making antibodies