Healing By Primary And Secondary Intent

Question 1

What is healing by primary intent?

Answer 1

Healing of a wound that is incised, close, non-infected and sutured

Question 2

What sort of healing intention would occur if the wound has disruption of basement membrane continuity but death of only small number of epithelial and connective tissue cells?

Answer 2

Healing by primary intention

Question 3

In healing by primary intention,how much clotting and granulation tissue is there?

Answer 3

Minimal

Question 4

What occurs in healing by primary intention?

Answer 4

• epidermis regenerates
• dermis undergoes fibrous repair
• sutures removed at 10days
• minimal contraction and scarring

Question 5

What is healing by secondary intention?

Answer 5

Healing of a wound that is excisional, with tissue loss and separated wound edges, infected wounds eg infarct, ulcer, abscess

Question 6

What type of healing intention would occur in an open wound?

Answer 6

Secondary intention

Question 7

Which type of healing intention is filled with abundant granulation tissue?

Answer 7

Secondary- grows in from wound margins

Question 8

What occurs in healing by secondary intention?

Answer 8

Same process as in primary intention but more so.

Considerable wound contraction

1. Scab contracts when it dries and shrinks
2. Myofibroblasts contract (1 week)

Substantial scar formation, new epidermis often thinner than usual

Take longer than primary intention