PSI Barbering Practice Exam

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Prepare for the PSI Barbering Exam with comprehensive quizzes and study materials. Learn with flashcards and multiple choice questions, each question includes hints and explanations. Get ready to excel in your exam!

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The skin protects from injury and what other factor?

Temperature
Pathogens
Humidity
Light

The correct answer is: Pathogens

The skin serves as a critical barrier in the body, protecting against various external factors, including pathogens. It acts as the first line of defense in the immune system by preventing the entry of bacteria, viruses, and other harmful microorganisms that can cause infections and diseases. The skin contains specialized cells that can identify and respond to these invaders, producing immune responses that help to protect the body. While the skin also plays a role in temperature regulation through sweat glands and blood vessel dilation, and it provides some protection against the effects of light and humidity, its primary protective function against injury is in regard to the invasion of pathogens. Understanding this function emphasizes the importance of maintaining skin integrity and health to prevent infections.