A 25-year-old man is stung on the forearm by a wasp. Within ten minutes a red, warm, swollen weal develops around the sting and subsides over the next hour.
Which mechanism chiefly accounts for the swelling?
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Free practice question 10 of 20 · Pathology
General pathological principles: a free MRCS Part A question
An original single best answer question in the style of the MRCS Part A paper, with the answer and a referenced explanation. Pick an answer to reveal it, then rate how sure you were.
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Pathology: what the exam tests
Syllabus coverage, high-yield themes and the common traps.
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Wound healing and inflammation: from acute inflammation to the mature scar
Acute inflammation, the phases of wound healing, collagen and tensile strength, impaired healing, keloid vs hypertrophic scar, granulomas and SSI prevention.
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Peripheral nerve injury: Seddon, Sunderland, Wallerian degeneration and repair
Nerve injury for MRCS Part A: nerve structure, Seddon and Sunderland grades, Wallerian degeneration, regeneration, nerve conduction timing and repair.
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