Emergency Medical Technician (EMT) Intermediate Practice Exam

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Prepare for the EMT Intermediate Exam. Utilize flashcards and multiple-choice questions, each with hints and explanations. Get ready for your certification test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Which of the following is NOT a function of the skin?

  1. Protection against infection

  2. Regulation of body temperature

  3. Destruction of sebum

  4. Prevention of water loss

The correct answer is: Destruction of sebum

The correct response highlights that the destruction of sebum is not a function of the skin. Sebum is an oily substance produced by sebaceous glands in the skin and plays a crucial role in lubricating and protecting the skin and hair. Instead of being destroyed, sebum contributes to the skin's barrier function by preventing water loss and aiding in the maintenance of skin hydration. The other options illustrate essential functions of the skin. The skin acts as a protective barrier against pathogens, chemicals, and physical injuries, which is critical for preventing infections. Additionally, it plays a significant role in thermoregulation by enabling the body to cool through perspiration and to conserve heat when necessary. Lastly, the skin's structure helps prevent excessive water loss, which is vital for maintaining overall hydration and cellular function in the body.