MCB 3020 EXAM 4 STUDY GUIDE UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

MCB 3020 EXAM 4 STUDY GUIDE UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. What are the two types of Immunity?
Answer:
Innate Immunity and Acquired Immunity

Question:
2. What are the major components of Innate Immunity?
Answer:
skin, stomach acid, fever, immflamuation, phagocytosis, and complement proteins

Question:
3. What is Innate Immunity?
Answer:
inbuilt immunity to resist infection (nonspecific)

Question:
4. What is Acquired Immunity?
Answer:
immunity established to resist infection (specificity, tolerance, memory)

Question:
5. What are the major components of Acquired Immunity?
Answer:

Question:
6. What are the primary lymphatic tissues and organs?
Answer:
bone marrow and thymus

Question:
7. What is the primary lymphatic system?
Answer:
involved in production, maturation, and differentiation of lymphocytes

Question:
8. What is the secondary lymphatic system?
Answer:
initiate an adaptive immune response by encountering and binding antigens

Question:
9. What are the secondary lymphatic tissues and organs?

,Answer:
spleen, lymph nodes, tonsils, lymphoid tissues, Peyer's patches

Question:
10. What is the function of bone marrow?
Answer:
where all immune system components originate (except complement proteins)

Question:
11. What is the function of the thymus?
Answer:
immune system cells develop and differentiate here after they leave the bone marrow

Question:
12. How is the spleen involved in the immune system?
Answer:
it filters the blood for: (1) dead red blood cells (red pulp) (2) any sign of infection (white pulp; contains
lymphocytes)

Question:
13. How are lymph nodes involved in the immune system?
Answer:
pea-sized organs that filter lymph for the presence of infectious agents (antigens)

Question:
14. Where are lymph nodes found?
Answer:
armpit area and groin area

Question:
15. What cells act inside lymph nodes?
Answer:
B cells and T cells interact with each other in the lymph node to process the antigen and initiate a response

Question:
16. What are the blood-formed elements?
Answer:
White Blood cells, Red Blood cells, and Platelets

Question:
17. What do red blood cells do?
Answer:
carry O2 and CO2

Question:
18. What do white blood cells do?

, Answer:

Question:
19. What do platelets do?
Answer:
involved in blood clotting and inflammation

Question:
20. If your number of neutrophils is high...
Answer:
you have bacterial infection

Question:
21. If your number of eosinophils is high...
Answer:
you have a parasitic infection

Question:
22. What is the first line of defense?
Answer:
nonspecific defense that prevents pathogens from entering the body

Question:
23. What are the major elements of the first line of defense?
Answer:
skin, mucous membrane, microbial antagonism,and mucociliary escalator

Question:
24. How does the skin defend against pathogens? (4)
Answer:
1) perspiration (high salt)
2) secretion of oil (low pH)
3) Lysozyme (destroy cell walls)
4) epidermis (shed dead cells with pathogens)

Question:
25. How does the mucous membrane defend against pathogens?
Answer:
continually sheds dead cells that may contain pathogens

Question:
26. How do microbes on the skin help defend against pathogens?
Answer:
they compete with other microbes for food and space they also provide vitamins to the host

Question:
27. What are the major components of the second line of defense?