PATHOLOGY MCQ
HEALING AND REPAIR
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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24 hrs-2 weeks
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48 hrs-3 weeks
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3-6 weeks
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6-8 weeks
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Detailed explanation-1: -Wound healing is classically divided into 4 stages: (A) hemostasis, (B) inflammation, (C) proliferation, and (D) remodeling. Each stage is characterized by key molecular and cellular events and is coordinated by a host of secreted factors that are recognized and released by the cells of the wounding response.
Detailed explanation-2: -The third phase of healing consists of remodeling, which begins two to three weeks after the onset of the lesion and can last for one year or more. The core aim of the remodeling stage is to achieve the maximum tensile strength through reorganization, degradation, and resynthesis of the extracellular matrix.
Detailed explanation-3: -The wound healing process is usually characterized as four sequential but overlapping phases: haemostasis (0–several hours after injury), inflammation (1–3 days), proliferation (4–21 days) and remodelling (21 days–1 year) [1].
Detailed explanation-4: -Inflammatory phase – This phase begins at the time of injury and lasts up to four days. Proliferative phase – This phase begins about three days after injury and overlaps with the inflammatory phase. Remodeling phase – This phase can continue for six months to one year after injury.