11. Which type of immunity occurs as a response to illness or vaccination? Acqui
ID: 50309 • Letter: 1
Question
11. Which type of immunity occurs as a response to illness or vaccination?
Acquired active
Acquired passive
Natural
12. What are the unique characteristics of the immune system?
repository, recognition, defense
self recognition, specificity, memory
interception, defense, notification
specificity, memory, defense
13. Which of the following is not one of the three unique characteristics of the immune system?
memory
sensitivity
specificity
self-recognition
14. Which of the following is an age related change associated with the immune system?
Increase in the number of macrophages and monocytes
The thymus continues to produce the same number of T cells with age
The rate of B-cell production declines with age
Immune memory declines with aging
15. A decrease in ________ secretion causes a lowering of blood volume and blood pressure and an increase is body osmotic pressure.
FSH
GH
LDH
T3
ADH
16. Which of the following statements regarding antibodies is true?
they destroy antigens by engulfing them
IgA activates the complement system
IgE antibodies release histamine and cause inflammation
Antibodies are manufacture and by platelets
17. Which condition causes autoimmune damage to receptors for acetylcholine at the neuromuscular junction?
Multiple sclerosis
Rheumatoid arthritis
Myasthenia gravis
Crohn's disease
18. Which is true in regards to Immune memory?
the number of memory cells increase with age due to the fact the body has been exposed to numerous antigens throughout life
the strength of the memory cells is not altered with aging but the speed in which the memory cells responds decreases with age
the function of the memory cells is not really altered until the patient reaches approximately eighty years of age
less decline in the ability to maintain memory that was produced during youth or young adulthood, as oppose to memory that came on in older adulthood
19. All of the following are ways to minimize the undesirable effects of aging on our immune system, except what?
diet low in complex carbs
regular vaccinations
seek early treatment when ill
wearing sun protection
20. Which type of immune system cell is formed from an unspecialized lymphocyte because of the influence of the thymus on the lymphocyte?
A-Cell
D-Cell
G-Cell
M-Cell
T-Cell
Acquired active
Acquired passive
Natural
Explanation / Answer
11. Acquired active
The immunity hat we get after exposure to a pathogen is known as naturally acquired active immunity and that is provided by vaccination is known as artificially acquired active immunity.
12. self recognition, specificity, memory
Immune system can recognise self and non-self cells and thus, provide specific immune reactions against a variety of pathogens. Memory cells (memory T cells) in the immune system can recognise the pathogens if they are repeatedly invading and trigger the release of antibodies against them.
13. Sensitivity
Self-recognition, specificty and memory are the three characteristics of immune system.
14. Immune memory declines with aging
With increase in age, the rate of B cell production by bone marrow does not decline. The number of macrophages and monocytes produced decrease with age and there will be a shrinkage in thymus and the immune cells produced by it.
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