Utah Esthetics Written State Practice Exam

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

Protection
Temperature regulation
Digestion
Sensation

The correct answer is: Digestion

The function of digestion is not associated with the skin. The skin primarily serves several critical roles, including protection from environmental hazards such as pathogens and UV radiation, temperature regulation through the evaporation of sweat and dilation or constriction of blood vessels, and sensation, allowing us to perceive touch, pain, pressure, and temperature through specialized nerve endings. In contrast, digestion is a physiological process that occurs primarily in the gastrointestinal system, involving the breakdown of food, absorption of nutrients, and elimination of waste. This function is entirely separate from the skin’s roles. Understanding the specific functions of the skin helps clarify how each contributes to overall health and well-being, distinguishing skin functions from those of other organ systems in the body.