PATHOLOGY MCQ
HEALING AND REPAIR
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
Collagen fibers
|
|
Epithelial tissue
|
|
fibroblasts
|
|
neutrophils
|
Detailed explanation-1: -Scars form as part of the healing process after your skin has been cut or damaged. The skin repairs itself by growing new tissue to pull together the wound and fill in any gaps caused by the injury. Scar tissue is made primarily of a protein called collagen. Scars develop in all shapes and sizes.
Detailed explanation-2: -As part of the healing process, specialized cells called fibroblasts in adjacent areas of skin produce a fibrous connective tissue made up of collagen. The bundles formed by these whitish, rather inelastic fibres make up the bulk of the scar tissue.
Detailed explanation-3: -A scar is usually composed of fibrous tissue. Scars may be formed for many different reasons, including as a result of infections, surgery, injuries, or inflammation of tissue. Scars may appear anywhere on the body, and the composition of a scar may vary. A scar may appear flat, lumpy, sunken, or colored.
Detailed explanation-4: -A mature cutaneous scar consists of a large amount of collagen, 80–90% of it type I collagen and the rest type III. In fact, 50% of the protein in scar tissue is collagen.