End
1 :

Hint : πŸ”₯ Immediate redness & swelling

Correct Answers:

  • Inflammation


Rationale :

πŸ’  When the skin barrier is disrupted, chemical mediators such as histamine and cytokines are released instantly from damaged cells.

πŸ’  This triggers vasodilation and increased capillary permeability, allowing immune cells to rapidly move to the injury site.

πŸ’  Neutrophils are the first responders, arriving quickly to destroy pathogens introduced through the knife wound.

πŸ’  The classic signsβ€”redness, warmth, swelling, and painβ€”are protective responses that help localize and control injury.

πŸ’  Inflammation is part of the second line of defense (innate immunity) and begins within seconds to minutes after trauma.

Infection

πŸ’  Infection is the invasion and multiplication of pathogens, which does not occur instantly at the moment of injury.

πŸ’  It develops over time if microorganisms overcome the body’s defense mechanisms.

Bleeding

πŸ’  Bleeding is a result of vascular injury but is not considered a line of immune defense.

πŸ’  The body’s protective response to bleeding is hemostasis (clot formation), not bleeding itself.

Body temperature

πŸ’  Changes in body temperature, such as fever, occur as part of a systemic immune response, not immediately within seconds.

πŸ’  Fever typically develops hours after infection or inflammation begins, not at the moment of injury.


Distractor Analysis :

Rationale for Incorrect Options to be Available Soon

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