What occurs during the inflammation stage hours after an injury?

What occurs during the inflammation stage hours after an injury?

• A. Inflammation cascade begins with erythema and edema
• B. Epithelialization begins
• C. Collagen synthesis occurs
• D. Wound contraction occurs

Answer: (A)

During the immediate response to injury, the body mobilizes the inflammatory cascade, which causes the blood vessels to dilate and become more permeable. This vascular reaction brings fluid and immune cells into the area, producing the classic signs of inflammation: redness (erythema) and swelling (edema). These changes occur within hours and are the body's way of cleaning the wound and defending against infection. Epithelialization, collagen synthesis, and wound contraction happen later in the healing process. Epithelialization begins as epithelial cells migrate to cover the wound during the proliferative phase. Collagen synthesis starts as fibroblasts lay down new matrix and is more prominent after the inflammatory stage. Wound contraction, driven by myofibroblasts, occurs as healing progresses toward remodeling.

During the immediate response to injury, the body mobilizes the inflammatory cascade, which causes the blood vessels to dilate and become more permeable. This vascular reaction brings fluid and immune cells into the area, producing the classic signs of inflammation: redness (erythema) and swelling (edema). These changes occur within hours and are the body's way of cleaning the wound and defending against infection.

Epithelialization, collagen synthesis, and wound contraction happen later in the healing process. Epithelialization begins as epithelial cells migrate to cover the wound during the proliferative phase. Collagen synthesis starts as fibroblasts lay down new matrix and is more prominent after the inflammatory stage. Wound contraction, driven by myofibroblasts, occurs as healing progresses toward remodeling.