Chapter 12: Immunology Flashcards
Name 3 reasons that the immune system can be overwhelmed allowing infection to lead to disease.
1- the infectious load is high
2- the virulence of the microbe is great
3- the immune system is compromised
What is another name for acquired immunity?
Adaptive immunity
In immunology, the term “attenuated” is often used. Which of the following best describes its meaning? A- originating from the outside B- weakened C- incapable of reproduction D- disease-causing
B- weakened
True or False
The same MIC proteins are found in all the animals of the same species.
False
What chemical messenger do macrophages and granulocytes release to escalate the immune response?
Cytokines
Which immune system are T lymphocytes associated with?
Acquired immune system
Which immune system are interferon associated with?
Innate immune system
Which immune system are antibodies associated with?
Acquired immune system
Which immune system is unbroken skin associated with?
Innate immune system
Which immune system is high acidity in the stomach associated with?
Innate immune system
Which immune system are plasma cells associated with?
Acquired immune system
True or False
An animal’s innate immune system is functional even if the animal has not been exposed to a foreign substance
True
True or False
The acquired immune response only develops in response to a specific antigen.
True
Antibody-mediated immune response is associated with which kind of cells?
B cells and plasma cells
What are the three steps involved in an acquired immunity response to a foreign substance?
1- recognition
2- amplification
3- resolution
What two types of molecules participate in the recognition step of an acquired immune response?
1- signal molecule
2- receptor molecule
Which of the following cells participate in the acquired immune response?
- macrophages
- fibroblasts
- B cells
- T cells
- erythrocytes
- dendritic cells
- macrophages
- B cells
- T cells
- dendritic cells
Which of the following statements is/are true of phagocytes?
A- they secrete antibodies
B- they engulf foreign materials
C- they have more than one nucleus
D- they are a component of the acquired immune system
B- they engulf foreign materials
D- they are a component of the acquired immune system
Which cells secrete specialized factors that carry messages to other immune system cells?
Helper T cells
True or False
Each antibody molecule can bind several different kinds of antigens.
False
What is the first class of immunoglobulins to be synthesized by a fetus or newborn in response to an antigen?
IgM
Which cellular organelle contains enzymes that destroy foreign materials that were engulfed by phagocyctic cells?
Lysosomes
Describe two ways by which active immunity can develop.
1- following exposure to an infectious agent
2- after inoculation with the attenuated or killed infectious agent
During which phase of an immune response do the antibodies become detectable in the serum?
The log phase
What is the term for the secondary immune response?
Anamnestic response
List two advantages associated with using dead viruses in vaccines
1- they cannot cause disease
2- they are generally more stable
What is the term used to describe an animal with a normal immune system?
Immunocompetent
Name three ways by which an individual can naturally acquire an immune disease
1- inherit it
2- acquire it through infection or illness
3- as a side effect of some drug treatment