Chapter 15 objectives Flashcards
This body region is protected by fatty acids, acidic pH, lactic acid, and a tough cell barrier with its own normal biota:
Group of answer choices
eyes
digestive tract
skin
urinary tract
respiratory tract
skin
Keratin is an important aspect of nonspecific defense because it
Group of answer choices
is toxic to pathogens.
physically restricts pathogens to a specific region.
destroys pathogens.
creates a physical barrier against pathogens.
creates a physical barrier against pathogens.
Plasma cells
Group of answer choices
produce and secrete antibodies.
are derived from T lymphocytes.
function in cell-mediated immunity.
function in blood clotting.
produce and secrete antibodies.
The circulating substances that affect the hypothalamus and initiate fever are
Group of answer choices
complement.
pyrogens.
interferons.
leukotrines.
lysozymes.
pyrogens.
_____ function in humoral immunity, while _____ function in cell-mediated immunity.
Group of answer choices
Monocytes; basophils
Basophils; T cells
B cells; T cells
T cells; B cells
B cells; neutrophils
B cells; T cells
During what process are hypochlorite and hydrogen peroxide produced in order to destroy bacteria and inhibit viral replication?
Group of answer choices
inflammation
lysozyme production
interferon production
complement production
phagocytosis
phagocytosis
Which of the following is mismatched?
Group of answer choices
interferon alpha and beta - inhibit viral replication
tumor necrosis factor - increases chemotaxis and phagocytosis
prostaglandins - activate eosinophils and B cells
interleukin-2 - stimulates T-cell mitosis and B-cell antibody production
serotonin - causes smooth muscle contraction
prostaglandins - activate eosinophils and B cells
Genetic differences among species and within a species can convey genetic immunity to certain diseases.
Group of answer choices
True
False
True
During what process are hypochlorite and hydrogen peroxide produced in order to destroy bacteria and inhibit viral replication?
Group of answer choices
interferon production
inflammation
complement production
lysozyme production
phagocytosis
phagocytosis
The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from that body site is the
Group of answer choices
digestive tract.
eyes.
skin.
respiratory tract.
urinary tract.
respiratory tract.
Immune system cells differentiate between self and foreign cells by their
Group of answer choices
cell processes.
markers.
cell walls.
markers
Which of the following is incorrect about inflammation?
Group of answer choices
Serotonin causes smooth muscle contraction.
Basophils and mast cells release histamine.
Pyrogens cause vasodilation and increased capillary permeability.
Inflammation can last hours to years.
Fever could be beneficial to inhibiting the pathogen.
Pyrogens cause vasodilation and increased capillary permeability.
Which of the following is not a chief function of inflammation?
Group of answer choices
cause a fever
start tissue repair
block further invasion
mobilize and attract immune components to injury site
destroy microbes
cause a fever
Inflammatory responses are orchestrated by the immune system and are part of the body’s third line of defense.
Group of answer choices
False
True
False
During inflammation, a high neutrophil count is a common sign of bacterial infection.
Group of answer choices
False
True
True
