VMD-0196
QUESTION
Ringworm infection is caused by invasion of keratinized epithelial cells by?
OPTIONS
(A) Ectoparasites
(B) Fungus
(C) Ticks
(D) Round worm
ANSWER
(B) Fungus
EXPLANATION
Ringworm, or dermatophytosis, is caused by fungi that invade keratinized tissues such as the stratum corneum and hair shafts. Ectoparasites, ticks, and roundworms do not invade keratin to produce the characteristic circular dermatophytic lesions.
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