Week 6 - Wound Healing

Question 1

What is primary intention healing?

Answer 1

1. Incision with blood clot
2. Edges approximated with suture
3. Fine scar
   anatomically back to the way it was

Question 2

What is secondary intention? (3)

Answer 2

1. Irregular, large wound with blood clot
2. granulation tissue fills in wound
3. Large scar
   ie bedsore

Question 3

What is tertiary intention?

Answer 3

1. Contaminated wound
2. Granulation tissue
3. Delayed closure with suture
   opened temporarily to get it clean, then stitched

Question 4

What is wound healing?

Answer 4

• inflammatory response is involved with healing wounds

Question 5

What are partial-thickness wounds?

Answer 5

damage to the epidermis and upper dermal layers

Question 6

How are partial thickness wounds healed? (3)

Answer 6

Re-epithelization
- production of new skin cells by undamaged dermal layer
- occurs in 5-7 days (hydrated, well-oxygenated, few microorganisms)

Question 7

What are full thickness wounds?

Answer 7

Damage extends to lower lays of dermis and subcutaneous tissue

Question 8

How are full thickness wounds healed? (2)

Answer 8

Granulation - gap in tissue filled by scar tissue
Contraction - Gap in tissue fibroblasts pull wound edges inward (maturation)