EXAM 2
1. Advantage of adaptive immune system
a) Memory cells that provide quicker, larger, more efficient immune responses
2. Lymph Leaves a lymph node via
a) Efferent lymphatic vessels
3. Intrapulmonary pressure is the pressure
a) Within the alveoli of the lungs
4. Inspiration occurs when intrapulmonary pressure
a) Is less than atmospheric pressure
5. A cellular component of innate defense includes
a) Natural killer cells
6. How do MHC molecuels help preent the immune system from attacking the bodies own cells
a) Class 1 MHC prevents self-antigens to teach T cells tolerance
7. What is the role of interferon in the defense against a disease
a) Protect cells that have not yet been affected
8. Which is false regarding the sleen?
a) Red pulp is where immune function takes place
9. Althouhg B and T lymphocytes originate in the bone marrow T cells mature in the
a) Thymus
10. Which immunoglobin is the most abundant in antibody plasma
a) IgG
11. For inspiration of air, what happens first
a) Diaphragm descends, thoracic volume begins to increase and rib cage rises
12. Protects mucosal barriers
a) IgA
13. Along with IgM thts os a b cell receptor
a) IgD
14. Main antibody of both primary and secondary immune respons
a) IgG
15. Involved in allergies
a) IgE
16. First peak during immune response
a) igM
17. What role does the diaphragm play in resperation
a) Contracts to increase throacid volume, reducing pressure and drawing air into the lungs
18. Immediate and subcutate hypersensitivities are caused by
a) Antibodies that trigger the release of histamine
19. Class 1 MHC is intracellular Class 2 is extracellular
20. Air moves out of the lungs when
a) Pressure is greater than the pressure in the atmosphere
21. Nose senses all the following except
a) As a direct indicator of cough reflex
22. What is bubo
a) An infected lymph node
23. Relationship between gas and pressure is
a) Boyles Law
24. T cells
a) Function in the adaptive immune system activation
25. T cells are differentiated into 2 groups CD4 and CD8 what do CD4 do
a) Helpter T cells
26. Which lymphoid organ atrophies as we age
a) Thymus
27. What is not classified as a lymphoid organ
a) Pancrease
28. Antibodies that act against forign substance are released by
a) Plasma cells
29. Cancer cells and virally infected cells can be killed before activation by
a) Natural Killer cells
30. Primary function of ciliated epithelium in the trachea is
a) To trap and move mucous, dust, and pathogens out of the respiratory tract
31. Lympoid tissue appears swelling of the mucous in the oral cavity
a) Tonsil
32. Walls of the aveoli are composed of two types of cells type one and type two aveolar cells, what is the function of type 2
a) Secrete surfactant
33. Which cells in the body primarily express class 1 MHC molecules
a) All nucleated cells
34. Which is not part of the lymphatic system
a) Erythrocytes
35. Structure in the respiratory system that adjust the airways diameter to reduce airflow resistance
a) Bronchioles
36. Maintains the pathway (opens) trachea
a) C-shaped cartilage rings
37. Conducting zone structure
a) Terminal Bronchiole
38. Vaccines work by primarily the adaptive immune system with
a) Relatively harmless primary exposure
39. Innate immune system defenses include
a) Phagocytosis
40. Lymphatic capillaries
a) are more permeable than blood capillaries
41. How does HIV ability to target the helper T cells affect immune system
a) Destroys helper t cells weakening the immune response
42. What pressure keeps the lungs from collapsing
a) Transpulmonary pressure
43. Primary role of epiglottis in the respiratory system is t
a) Prevent food and liquid from entering the airway due to swallowing
44. Function of the MHC class 2 molecules are
a) Present extracellular antigens to CD4 T cells
45. Small Secondary Lymphoid organ which is closer along the lymphatic vessels Is
a) Lymph node
46. Flu vaccine is needed seasonally to be effective but polio vaccine is only needed ones what is the explanation
a) Flu has several strains that change drastically
47. How do the intercoastal muscles assist in resperation
a) They contract during inhilation to lift the rib cage and increase thoracic volume
48. Membrane attack complex kills by
a) Disrupting the selectivity permeability of bacteras plasma membrane