Q 1 Scar constriction is facilitated by ? A. Myofibroblasts B. Neutrophils C. Granuloma formation D. Macrophages
Ans a Myofibroblasts
In the later stages fibroblasts convert into myofibroblasts which have a contractile phenotype and therefore help in contracting the wound. Immature fibroblasts, though able to adhere to the ECM, do not have this ability.
Q) Longest phase of wound healing A. Inflamatory B Haemostasis C. Regeneration D. Remodeling
Ans D
Remodeling is the Longest phase of the healing process and may last up to one year (or longer). During this phase fibroblasts become
differentiated (myofibroblasts) and these facilitate wound contraction. Collagen fibres are remodeled. Microvessels regress
leaving a pale scar.
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