Actinomyces viscosus, a ubiquitous actinomycete, grows under micro-aerophilic or
ID: 83344 • Letter: A
Question
Actinomyces viscosus, a ubiquitous actinomycete, grows under micro-aerophilic or strict anaerobic conditions and produces a yellow-orange granule in the typical tissue exudates. It is best described by which of the following?
a. An anaerobic, filamentous bacterium that often causes cervicofacial osteomyelitis
b. A -hemolytic organism that causes a diffuse, rapidly spreading cellulitis
c. A facultative anaerobe that is highly cariogenic and sticks to teeth by synthesis of a dextran
d. A facultative anaerobe that often inhabits the buccal mucosa early in a neonate’s life and can cause bacterial RF
e. A facultatively anaerobic, rod-shaped bacterium that sticks to teeth and is cariogenic, commonly involved in problems involving dental procedures, trauma to or surgery of the oral cavity, or aspiration
Explanation / Answer
e. A facultatively anaerobic, rod-shaped bacterium that sticks to teeth and is cariogenic, commonly involved in problems involving dental procedures, trauma to or surgery of the oral cavity, or aspiration.