Tissue healing and repair

Question 1

What are the 4 steps in tissue healing and repair?

Answer 1

injury, inflammation, organization & regeneration

Question 2

Which of the two examples represents first intention healing A or B? A. A wound from a tumor removal that was too big to close completely and therefore required bandages for 3 weeks while it closed. B. A 0.5cm surgical wound on a cats abdomen from her spay.

Answer 2

B

Question 3

Describe inflammation

Answer 3

Vasoconstriction for 10 minutes followed by vasodilation, edema (swelling) and clot formation.
Phagocytosis of bacteria by neutrophils.

Question 4

Describe wound organization

Answer 4

Formation of granulation tissue in the wound and ongoing phagocytosis of dead cells, debris and pathogens.

Question 5

Describe regeneration/fibrosis

Answer 5

Coverage of granulation tissue with epithelia, wound contraction in wounds of sufficient size and replacement of granulation tissue with fibrous scar tissue in wounds of sufficient size.