Immune System and Vaccines

Select all physical barriers making up 1st line of defence

• phagocytes

• mucous

• skin

• cilia

What is one way a pathogen can enter the body?

• Nose
• Mouth
• Broken Skin
• All of the Above

 Liz notices that shortly after cutting her arm accidentally the area around the cut is turning red and feeling hot.  Which immune system defense is Liz experiencing?  

• inflammation
• white blood cell clotting
• skin
• fever

Which of the following are examples of innate (non-specific) immunity?

• Skin forms a physical and antiseptic barrier to pathogens

• Leukocytes detect the antigens of the E.coli bacterium and produce antibodies

• Macrophages engulf bacterial cells at the site of infection

• The body produces large numbers of memory cells with specific antibodies

What are the two types of immune systems?

• Acquired & Adaptive

• Innate & Adaptive

• Innate & Autoimmune

• Red & White Blood Cells

The innate immune system is...

• Always working and doesn't require any special preparation

• Needs to be "primed" before it can work to its full effectiveness

• Very specific and only defends against a specific pathogen

• Not very effective at preventing intruders

What is a first line defense?

• Barries within our body which form the immune system.

• When the pathogens gets through the external defenses, and the body's response leads to healing

• The response from our body when a pathogen gets inside our body.

• Physical and chemical barriers which prevent disease-causing pathogens enter your body.

• An example of a first line defense are the immune cells.

What is the difference between adaptive immunity and innate imunity?

Adaptive immunity is faster to respond to threats and infections than the innate immune response

• True

• False

• Sometimes true

• Sometimes false

The white blood cells that produce antibodies are T cells.

• True

• False