Flashcards in Chapter 22 Lymphatic System Deck (99)
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31
What are the organs of the immune system?
Thymus, lymph nodes, spleen, and lymphatic nodules.
32
The left subclavian vein receives lymph from
Thoracic Duct
33
The lymph from the right foot empties into the
Thoracic Duct
34
The skeletal muscle and respiratory pumps are used in
Lymphatic, immune, and cardiovascular systems
35
Which organ produces a hormone that promotes maturation of T cells?
Thymus
36
Which portion of the lymph node does not contain any lymphatic nodules.
Inner Cortex
37
What is the function of the spleen?
Immune functions, destruction of blood-borne pathogens, removal of ruptured, worn out, or defective blood cells and platelets, storage of platelets, and production of blood cells during fetal life.
38
What are the physical factors in the first line of defense?
Epidermis of skin, mucous membranes, mucus, hairs, cilia, lacrimal apparatus, saliva, urine, defecation, and vomiting.
39
What are the chemical factors in the first line of defense?
Sebum, lysozyme, gastric juice, and vaginal secretions.
40
What makes up the second line of defense?
Antimicrobial substances, natural killer cells and phagocytes, inflammation, and fever.
41
Which anti-microbial substances reduce viral replication (in uninfected cells)?
Interferons
42
Which anti-microbial substances promote cytolysis, phagocytosis and inflammation?
Complement Proteins
43
Which cell kills infected body cells and tumor cells?
Natural Killer Cells
44
What are the signs of inflammation?
Heat, redness, swelling, and pain.
45
What intensifies the effect of interferons and promotes the rate of repair?
Fever
46
What induces vasodilation and permeability (increased fluid flow) to an infection site?
Histamine, kinins, prostaglandins, leukotrienes, and complement.
47
When B and T cells are fully developed and mature, they are described as being
Immunocompetent
48
What induces the production of a specific antibody?
Antigen
49
What stimulates an immune response ONLY when it is attached to a large carrier molecule?
Hapten
50
Which class of cells includes macrophages, B cells and dendritic cells?
Antigen Presenting Cells
51
To become activated, what requires being bound to a foreign antigen AND simultaneous costimulation?
T Cell
52
Which cells display CD4 proteins and interact with MHC Class II antigens?
Helper T Cells
53
Which class of antibodies is mainly found in sweat, tears, breast milk and GI secretions?
IgA
54
Which action makes microbes more susceptible to phagocytosis?
Opsonization
55
The inability of the immune system to protect the body from a pathogen causes
Immunodeficiency Diseases
56
An acute allergic response can lead to:
Anaphylactic Shock
57
Natural exposure to an infectious agent leads to:
Active Immunity
58
The primary response will peak how many days after an exposure?
10-17
59
Which type of immunity defends against any type of invader?
Nonspecific
60
