Skin Repair

Question 1

Initial injury

Answer 1

Bleeding

Mast cell inflammation

Question 2

Hours afterwards

Answer 2

Blood clot

Macrophages get rid of pathogen and debris

Stratum basale rapidly divide

Question 3

One week later

Answer 3

Blood clot dissolves

Fibroblasts create more collagen and ground substance

Question 4

Several weeks later

Answer 4

Scab completely comes off

Epidermal repair completes

Scar tissue raises (eventually remodeling occurs)