Flashcards in Chapter 22 Lymphatic System Deck (99)
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61
What is a small hormone that can stimulate or inhibit many normal cell functions?
Cytokine
62
Which type of adaptive immunity will result from intravenous injection of immunoglobulins?
Artificially acquired passive immunity
63
Which type of adaptive immunity will result from mother-to-baby IgA transfer via breast feeding?
Naturally acquired passive immunity
64
Which cells increase the permeability of blood vessels by releasing histamine?
Mast Cells
65
Which immunoglobulin is a pentamer?
IgM
66
Antigens that induce an allergic reaction are called
Allergen
67
Which cell is considered to be the most important cell in the immune system?
T Helper Cells
68
The thymus develops from the
Third Pharyngeal Pouch
69
What negatively affects the immune system?
Smoking, lack of sleep, sedentary lifestyle, and stress.
70
True or False: Lymphatic vessels drain excess interstitial fluid from connective tissues.
True
71
The antibody molecule is held together by ________ bonds.
Disulfide
72
Large clusters of lymph nodes occur in which regions?
Near the mammary glands and in the axillae and groin.
73
True or False: The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream.
True
74
True or False: The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs.
False
75
What are the digestive-tract associated lymphatic tissues?
Peyer's patches, appendix, and tonsils.
76
Both lymph and venous blood flow are heavily dependent on ________.
Skeletal muscle contractions and differences in thoracic pressures due to respiratory movement
77
Small organs associated with lymphatic vessels are termed ________.
Lymph Nodes
78
True or False: NK cells are a type of neutrophil.
False
79
Which cells become immunocompetent due to thymic hormones?
Lymphocytes
80
What is the correct sequence of events in phagocytosis?
Chemotaxis, adherence, ingestion, digestion, killing
81
True or False: When tissues are inflamed, lymphatic capillaries develop openings that permit uptake of large particles such as cell debris, pathogens, and cancer cells.
true
82
In clonal selection of B cells, which substance is responsible for determining which cells will eventually become cloned?
Antigen
83
The thymus is most active during ________.
Childhood
84
The primary immune response has a large lag due to what?
While B cells proliferate and differentiate into plasma cells.
85
Lymph capillaries are absent in which tissues?
Avascular tissues (cartilage, epidermis, cornea of the eye), the central nervous system, portions of the spleen, and red bone marrow.
86
True or False: The causative agent in acquired immune deficiency syndrome (AIDS) is a virus that recognizes CD4 proteins.
True
87
True or False: Antigens only come from microbes.
False
88
True or False: Type II Diabetes is an autoimmune disease.
False
89
Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?
Right Lymphatic Duct
90
