How Is It Possible for Anaerobes to Be Involved in Bite

question 37

Multiple Choice

How is it possible for anaerobes to be involved in bite wound infections?

• A) Most bite wounds are on hands or fingers, which have little tissue and few blood vessels, and are thus fairly anaerobic.
• B) Facultative anaerobes in bite wounds reduce available oxygen in the affected tissue, creating anaerobic conditions.
• C) Bite wounds result in the release of anaerobinases by keratinocytes; these convert oxygen to nitrogen, generating anaerobic conditions.
• D) Although anaerobes are introduced into a wound through biting, they do not multiply in the aerobic tissue and do not contribute to a bite wound infection.
• E) In fact, anaerobes are never involved in bite wound infections; tissues are always well oxygenated, which inhibits any anaerobes from multiplying in them.

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