Test 2 Study Guide Flashcards
How do our bodies identify immune cells?
identified by a specific protein on its cell surface called the
Cluster of Differentiation/CD marker
What is the antigen receptor of the B Cell called?
B Cell Receptor (BCR)
A fully differentiated B cell is called a ______
plasma cell
The presence of C19 or C20 indicate the Prescence of
B Cells
The presence of C3+ indicate the Prescence of
T cells
The presence of CD56+ indicate the Prescence of
Natural Killer Cells (part of innate immunity)
What is the name of the Natural Killer Cell’s receptor?
Killer Inhibitory Receptor
The presence of CD11c+ indicate the Prescence of
Dendritic cells
Another word for WBCs is
Granulocytes
What WBCs can be identified by the presence of CD66b+
◦ Neutrophils
◦ Eosinophils
◦ Basophils
◦ Mast Cells
Neutrophils play a major role in fighting off bacterial infections; eosinophils play a major role in fighting off parasites; and basophils and mast cells play a major role in allergic reactions.
The Prescence of purulence in a wound indicates the presence of which WBC
Neutrophils
Describe the process of phagocytosis in a neutrophil
Bacterium surface antigens connect to neutrophil membrane receptor and neutrophil engulfs bacterium. Bacterium becomes surrounded by a phagosome. Granules (azurophilic, specific) increase PH inside phagosome. A lysosome attaches to the phagosome, becoming a phagolysosome. The phagolysosome digests the contents of the phagosome. The neutrophil dies and is phagocytized by a macrophage.
Which WBC deals with parasites?
Eosinophils
What do basophils do
promote allergic responses
What does the presence of CD14+ indicate?
Presence of monocytes (baby macrophages) or macrophages
Neutrophils make up what percentage of WBC
50-62%
Lymphocytes make up what percentage of WBC
25%–40%
monocytes (baby macrophages) make up what percentage of WBC
3%–7%
Eosinophils make up what percentage of WBC
0%–3%
Basophils make up what percentage of WBC
0%–1%
How long does it take for the adaptive immune system to become effective?
About 4 days
How do our immune cells know how to differentiate between self and pathogens?
PAMPs (Pathogen Associated Molecular Patterns) Ex: flagella, single stranded DNA/double stranded RNA, Chemicals in the walls of fungi
What are the seven aspects of innate immunity
physical/mechanical/chemical barriers
Phagocytosis
Inflammation
acute phase response
fever (pyrexia)
NK cells/antiviral immunity
plasma protein systems
IGG
MOST ABUNDANT ACCOUNTS FOR MOST OF PROTECTIVE IMMUNITY