TEAS 7 IMMUNE SYSTEM EXAM
INNATE IMMUNE SYSTEM - Correct Answers -
Is the innate system specific or nonspecific? - Correct Answers -nonspecific because
we are born with it
What is the innate system? - Correct Answers -Nonspecific first line of defense against
pathogens that is present at birth
Is there potential for the innate system to "learn" from previous pathogens or adapt to
new threats? - Correct Answers -NO
What are the 2 barriers to infection in the 1st line of defense of the innate system? -
Correct Answers -Mechanical and chemical barriers
What is the problem with AIDS and HIV? - Correct Answers -It infects helper T cells and
prevents the activation of B/T cells.
Prevents adaptive immune system from operating
What happens in an overactive immune response? - Correct Answers -triggers
innocuous foreign particles like pollen causing the body to overproduce huge amounts
of antibodies that trigger a histamine release from mast cells
Results in allergy symptoms like sneezing and mucus secretion
What are 3 autoimmune diseases where the immune system mistakenly attacks the
body - Correct Answers -Type 1 diabetes
Rheumatoid arthritis
Multiple sclerosis
What are the 1st barriers of infection of the innate immune system? - Correct Answers -
Mechanical barriers:
- skin
- mucous membranes
What is the 2nd barrier of infection of the innate immune system? - Correct Answers -
Chemical barriers:
, - stomach acid (low pH of gastric juice)
- lysozymes in tears
- interferons that block viral replication
- antimicrobial proteins (defensins, collectins, complements)
- phagocytes engulf pathogens
- destruction of infected cell by natural killer cell
INNATE IMMUNE SYSTEM CELLS - Correct Answers -
Neutrophils
(innate immunity) - Correct Answers -Most of white blood cells in the bloodstream
Usually first to arrive at the site of infection
Chase pathogens using chemotaxis
Phgocytosis
Most of white blood cells in the bloodstream
Usually first to arrive at the site of infection
Chase pathogens using chemotaxis - Correct Answers -Neutrohils
(innate immunity)
Eosinophils
(innate immunity) - Correct Answers -Regulate inflammatory responses
Release chemicals that kill foreign invaders often parasite worms
Regulate inflammatory responses
Release chemicals that kill foreign invaders often parasite worms - Correct Answers -
Eosinophils
(innate immunity)
Mast cells
(innate immunity) - Correct Answers -Found in connective tissue
Release histamine to promote inflammation and heparin to inhibit clotting
Found in connective tissue
Release histamine to promote inflammation and heparin to inhibit clotting - Correct
Answers -Mast cells
(innate immunity)
Basophils
(innate immunity) - Correct Answers -Circulate in the blood before entering tissues
Release histamine to promote inflammation and heparin to inhibit clotting
Circulate in the blood before entering tissues
Release histamine to promote inflammation and heparin to inhibit clotting - Correct
Answers -Basophils
(innate immunity)
INNATE IMMUNE SYSTEM - Correct Answers -
Is the innate system specific or nonspecific? - Correct Answers -nonspecific because
we are born with it
What is the innate system? - Correct Answers -Nonspecific first line of defense against
pathogens that is present at birth
Is there potential for the innate system to "learn" from previous pathogens or adapt to
new threats? - Correct Answers -NO
What are the 2 barriers to infection in the 1st line of defense of the innate system? -
Correct Answers -Mechanical and chemical barriers
What is the problem with AIDS and HIV? - Correct Answers -It infects helper T cells and
prevents the activation of B/T cells.
Prevents adaptive immune system from operating
What happens in an overactive immune response? - Correct Answers -triggers
innocuous foreign particles like pollen causing the body to overproduce huge amounts
of antibodies that trigger a histamine release from mast cells
Results in allergy symptoms like sneezing and mucus secretion
What are 3 autoimmune diseases where the immune system mistakenly attacks the
body - Correct Answers -Type 1 diabetes
Rheumatoid arthritis
Multiple sclerosis
What are the 1st barriers of infection of the innate immune system? - Correct Answers -
Mechanical barriers:
- skin
- mucous membranes
What is the 2nd barrier of infection of the innate immune system? - Correct Answers -
Chemical barriers:
, - stomach acid (low pH of gastric juice)
- lysozymes in tears
- interferons that block viral replication
- antimicrobial proteins (defensins, collectins, complements)
- phagocytes engulf pathogens
- destruction of infected cell by natural killer cell
INNATE IMMUNE SYSTEM CELLS - Correct Answers -
Neutrophils
(innate immunity) - Correct Answers -Most of white blood cells in the bloodstream
Usually first to arrive at the site of infection
Chase pathogens using chemotaxis
Phgocytosis
Most of white blood cells in the bloodstream
Usually first to arrive at the site of infection
Chase pathogens using chemotaxis - Correct Answers -Neutrohils
(innate immunity)
Eosinophils
(innate immunity) - Correct Answers -Regulate inflammatory responses
Release chemicals that kill foreign invaders often parasite worms
Regulate inflammatory responses
Release chemicals that kill foreign invaders often parasite worms - Correct Answers -
Eosinophils
(innate immunity)
Mast cells
(innate immunity) - Correct Answers -Found in connective tissue
Release histamine to promote inflammation and heparin to inhibit clotting
Found in connective tissue
Release histamine to promote inflammation and heparin to inhibit clotting - Correct
Answers -Mast cells
(innate immunity)
Basophils
(innate immunity) - Correct Answers -Circulate in the blood before entering tissues
Release histamine to promote inflammation and heparin to inhibit clotting
Circulate in the blood before entering tissues
Release histamine to promote inflammation and heparin to inhibit clotting - Correct
Answers -Basophils
(innate immunity)
