Tri A - Tissue Repair

Question 1

Describe Inflammation

Answer 1

Non-specific response
Blood vessels dilate - capillary permeability increases
Histamine released

Question 2

What are symptoms of inflammation? and what causes these?

Answer 2

Redness - increased blood flow
Heat - increased blood flow
Pain -
Swelling - fluid leaking due to increased permeability
Loss of function

Question 3

Name the 3 cell types and their regenerative ability

Answer 3

Labile Cells - regenerate best
Stable Cells - lower turnover but still regenerate
Permanent Cells - cannot reproduce

Question 4

What are the 3 stages of wound healing?

Answer 4

1. contraction of wound
2. tissue repair
3. tissue regeneration

Question 5

What’s the difference between repair and regeneration?

Answer 5

Repair - For deeper wounds, there will be both epithelial and connective tissue response - scarring will occur
Regeneration - Replacement of damaged cells - no scarring

Question 6

Describe Primary Intention

Answer 6

Close edges,
Minimal tissue loss,
Minimal cell division required,
Little to no scarring

Question 7

Describe Secondary Intension

Answer 7

Edges far apart,
Large tissue loss,
Extensive cell division,
Connective tissue response,
Scar formation