Innate Immune System & AIR Flashcards
(18 cards)
One of the ways in which normal flora benefit the host is by:
inhibiting the cellular growth of harmful microorganisms
Saliva & tears contain what enzyme that destroys certain bacteria
Lysozymes
A chemical released by virus-infected cells to protect un-infected cells is called:
Interferons
the aetiology of the acute inflammatory response could include
dust, bites, injury and infection
The inflammatory response is characterised by
increased vascular permeability to serum proteins in the inflamed area
The main phagocytic cells in the body are:
Macrophages & neutrophils
List examples of second line of defence
Phagocytosis (neutrophils & macrophages), natural killer cells, inflammation, fever, antimicrobial proteins, complement system
List examples of first line of defence
epidermis, cilia, mucous, lysozymes
What non-specific defence cell specialises in attacking early cancer cells and virus-infected cells?
Natural Killer/NK Cells
What are the characteristics of the Inflammatory Phase
What are the characteristics of the Proliferation Phase
What are the characteristics of the Remodelling Phase
What are the characteristics of the Remodelling Phase
What are the three phrases of wound healing
- Inflammatory, 2. proliferation, 3. Remodelling
What wound would heal by primary intention?
Simple cut with no tissue loss
Swelling due to AIR is a result of:
leakage of fluids (blood, plasma, clotting factors) into the surrounding tissue due to an increased permeability of blood vessels
State what are nonspecific defences
Primary protective barriers to prevent all foreign microorganisms and pathogens
What are the three phrases of wound healing
- Inflammatory, 2. proliferation, 3. Remodelling
