Arkansas Esthetician Practice Exam

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What is the main function of Langerhans cells?

Protecting the body from infection
Giving skin its color
Producing sweat
Regulating body temperature

The correct answer is: Protecting the body from infection

Langerhans cells are specialized cells found in the skin that play a vital role in our innate immune system. Their main function is to identify and capture foreign invaders such as bacteria, viruses, and other harmful substances, and present them to the other cells of our immune system for destruction. This helps protect the body from infection and plays a crucial role in our overall health. The other options are incorrect because they are functions of other cells or systems in the body. Melanocytes are responsible for giving skin its color, sweat glands produce sweat to help regulate body temperature, and the hypothalamus and nervous system are primarily responsible for regulating body temperature. Therefore, the correct answer is A.