healing

Question 1

how does skin heal a superficial wound

Answer 1

basal cells move across gap and multiply

Question 2

3 phases of deep wound healing

Answer 2

inflammatory phase
proliferative phase
remodelling phase

Question 3

describe inflammatory phase wound healing

Answer 3

leukocytes clean up microbes, foreign/dead tissues
blood clot forms - becomes scab
epithelial cells repair basement membrane

Question 4

describe proliferative phase wound healing

Answer 4

granulation tissue formed, made up of BVs/collagen

differentiation/repair of epithelial cells

Question 5

describe remodelling phase wound healing

Answer 5

scab sloughs off

scar tissue remains

Question 6

what is scar

Answer 6

fibrous connective tissue

Question 7

characteristics of scar

Answer 7

denser collagen fibres
less elasticity
fewer hairs, glands, nerve endings, BVs

Question 8

2 types scar

Answer 8

Hypertrophic - stays in boundary of wound

keloid - larger than wound, raised, red