Which structure is a common portal of entry for microorganisms into the body?
Correct answer: B. Respiratory tract
- A. Intact skin
- B. Respiratory tract
- C. Sterile muscle tissue
- D. Closed urinary bladder
Explanation
The respiratory tract is a common portal of entry because inhaled organisms can reach mucous membranes and the lungs. Intact skin normally provides protection, whereas damaged skin or invasive devices can create entry points.
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About Infection Prevention and Asepsis
Asepsis covers the chain of infection, hand hygiene, personal protective equipment, standard and transmission-based precautions, sterilisation, disinfection and safe waste disposal. The key distinction is between medical asepsis, which reduces microorganisms, and surgical asepsis, which maintains a sterile field during invasive procedures.
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