Pathogens & Allergies
pathogens penetrating host defenses.
What is infection?
A foreign molecule that causes a specific immune response
What is a PAMP?
An example of a secondary acquired immunodeficiency.
What is AIDS?
Acquired specific immunity involves the response of these cells.
What are B and T cells?
The number of persons afflicted with an infectious disease
What is the morbidity rate?
Bacterial toxins that activate T cells at a 100 times greater rate than other antigens.
What are superantigens?
The cells hold and present processed antigen on their cell membrane surface.
In multiple sclerosis, autoantibodies attack this.
What are myelin sheath cells of the nervous system?
These cells secrete antibodies.
What are plasma cells?
The stage of an infectious disease when specific signs and symptoms are seen and the pathogen is at peak activity
What is the convalescent phase?
Antigens that elicit allergic reactions
What are allergens?
This process involves antibodies covering surface receptors on a virus or toxin molecule, thereby disrupting their activity.
What is opsonization?
Disease arising from the production of autoantibodies against acetylcholine receptors on skeletal muscle.
What is myasthenia gravis?
T-cells mature here.
What is the thymus?
The time from when pathogen first enters the body and begins to multiply, until symptoms first appear.
What is the incubation phase?
A systemic, sometimes fatal, reaction with airway obstruction and circulatory collapse
What is systemic anaphylaxis?
a set of glycoproteins found on all body cells coded by a specific set of genes that is more similar between related individuals.
What is the major histocompatibility complex?
A fetus acquiring maternal IgG to the chickenpox virus across the placenta would be demonstrating this type of immunity.
What is natural passive immunity?
The migration of white blood cells from the blood out to the tissues
What is diapedesis?
The objective, measurable evidence of disease evaluated by an observer
What is a sign?
The blood cells that function in allergic reactions and inflammation, contain peroxidase and lysozyme, and particularly target parasitic worms and fungi.
What are eosinophils?
MHC molecules are found on all cells except these cells.
What is a red blood cell?
Microbial hyaluronidase, coagulase, and streptokinase are examples of this.
What is a bacterial exotoxin?
A patient enters your clinic with a suspected helminthic infection. In support of this diagnosis, you suspect elevated levels of this antibody in the patient's serum.
What is IgE?
An intermediary inanimate object from which an infectious agent is acquired
What is a fomite?