Final 4.2 Flashcards
What does the physical barriers do ?
Epithelium layer
Keeps hazardous organisms an materials outside the body
What does phagocytes do
Eat infection
- engulf pathogens and cell debris
- mircophages; WBCs : neutrophils, eosinophils
- marcophages; fixed or free
What does interferons do
Chemical signaling to stop replication
Active more NK and marcophages
What does complement do
- works with antibody system
- consist of circulating proteins that assist antibodies in destruction of pathogens
What does inflammatory response do
Is a localized, tissue-level response that tends to limit the spread of an injury or infection
What does a fever do
Is an elevate body temp that accelerate tissue metabolism and activity of defenses
What does adaptive (specific) immunity consist of
- triggered by specific pathogens
- T-cells target and attack, also active B-cells
- B-cells design antibodies specific for each infection
What tiggers the T-cells
Antigens
What are antigens
Proteins that are found in surface of cell
-“surface labels” that identify a cell
-T-cells
•respond to foreign antigens
•ignores your own antigens
What do most of your cells contain
Type 1 MCH
What are the 7 innate defenses
Physical barrier
Phagocytes
Interferons
Complement
Inflammatory response
Fever
What do antigens bind to?
Antigens bind to B-cells and then T-cells bind to B-cells and actives it causing it to become a memory B-cell or evolves into plasma cell
