Healing Flashcards
When does the healing process start?
Almost immediately after inflammation.
Is the next step after inflammation
What are the two main steps of healing?
Regeneration
Repair
What is the definition of the regeneration process of healing?
Replacement of original tissue with functional tissue of the same type
In the regeneration process of healing what do the cells have to be capable of?
Mitosis
What tissued cannot perform mitosis?
Cardiac
Skeletal muscle
Neurons
What is the repair stage of healing?
Replacement of original tissue with scar tissue.
What is scar tissue a type of?
Connective tissue
What is scar tissue made up primarily of?
Type I and Type II collagen
Are scars in neural tissue functional or non functional?
Non functional
What are scars in neural tissue made primarily of?
Astrocytes
What are the stages of the repair healing process in bone?
-The vessels break
-A clot forms
-Macrophages flood the area and secrete 3 activating substances
In the repair healing process in bones, macrophages flood the area and secrete 3 activating substances, what are these called?
Fibroblast activator - secretes the ingredients for collagen
Angiogenesis factor - promotes revascularisation
Osteogenesis factor - increase in osteoblasts
What are contractures?
A complication of the healing process.
It’s a remodelling of scars after healing, problems arise when there is a large area of scarring.
(Think burn victims faces).
What are strictures?
A complication of healing - a remodelling of scars in ‘tubular’ organs/passages
Does healing always follow the same process no matter where in the body?
Yes, healing follows the same processes no matter
where in the body the cells are damaged.
