Immunity Part 2 Review (3 bonus points)

Which of the following are examples of innate (non-specific) immunity? (select all that apply)

• Skin forms a physical barrier to pathogens

• T cells regognize specific antigens and cause cell lysis

• Macrophages engulf bacterial cells at the site of infection

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

Cells that ingest pathogens are

• plasma cells
• phagocytic cells
• helper T cells
• antibodies

This type of immunity is acquired during one's lifetime. It is induced by antigens that invade the body.

• innate immunity

• adaptive immunity

• nonspecific immunity

• normal microbiota

Which of the following is NOT part of the first line of defense?

• skin
• B cells
• sweat
• lysozyme

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

• Is very specific and only defends against a specific pathogen

• provides a better response the second time a microbe is encountered

 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

• coagulase

• phagocytosis

• fever

Inflammation

• causes reduced blood circulation to the damaged/infected area

• brings more phagocytes to the damaged/infected area

• releases Natural Killer cells

• produces antibodies

The First Line of Immune Defenses describes

• inflammation

• phagocytosis

• B cells

• physical and chemical barriers

The Second Line of Immune Defense includes

• antibodies

• chemical barriers to infection

• T cells

• cellular immune responses that are not specific to one pathogen

Vaccines stimulate your body to produce _____________

• viruses

• antigens

• antibodies

• pathogens