Washington Cosmetology License Practice Exam

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Prepare for the Washington Cosmetology License Exam with detailed explanations of each question. Study using flashcards and multiple choice questions to ensure you pass the exam with confidence!

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.

The skin is considered:

Second-largest organ of the body
The first line of defense against disease
Only external in function
Not essential for heat regulation

The correct answer is: The first line of defense against disease

The skin is considered the first line of defense against disease because it acts as a protective barrier against pathogens and other foreign invaders. Option A is not the best choice because while the skin is one of the largest organs of the body, it is not necessarily the second-largest and this information is not relevant to the question. Option C is incorrect because the skin also plays important roles in regulating body temperature, retaining moisture, and producing vitamin D. Option D is incorrect because the skin is an essential part of the body's thermoregulation system, helping to regulate internal body temperature by dilating or constricting blood vessels and controlling sweat production. Therefore, option B is the most appropriate answer.