Colorado Esthetician Written Practice Exam

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How does the skin respond to different external stimuli like touch, pain, and temperature?

Excretion
Protection
Sensation
Secretion

The correct answer is: Excretion

The skin responds to different external stimuli like touch, pain, and temperature through sensation. This means that it is the sensory receptors in the skin that help detect and process these stimuli. Sensation plays a crucial role in helping us interpret and react to our environment. Option A, excretion, refers to the process of expelling waste or excess substances from the body, which is not related to how the skin responds to external stimuli such as touch, pain, and temperature. Option B, protection, is important for the skin as it acts as a barrier to protect the body from external factors such as pathogens and UV radiation, but it does not directly relate to how the skin responds to touch, pain, and temperature. Option D, secretion, refers to the production and release of substances such as sweat and sebum by the skin glands, which are different functions from how the skin responds to external stimuli through sensation.