Emergency Medical Technician (EMT) Intermediate Practice Exam

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

1. Protection against pathogens

2. Regulation of body temperature

3. Production of antibodies to foreign organisms

4. Sensation of touch and pressure

The correct answer is: Production of antibodies to foreign organisms

The skin serves multiple critical functions, but the production of antibodies is not one of them. Instead, the immune system, primarily involving white blood cells and specific organs, is responsible for the production of antibodies to foreign organisms. In contrast, the skin plays an essential role in protecting against pathogens, essentially acting as a barrier that prevents harmful microorganisms from entering the body. It is also instrumental in regulating body temperature through mechanisms like sweating and blood vessel dilation or constriction. Additionally, the skin contains various nerve endings that enable the sensation of touch, pressure, pain, and temperature, contributing to our awareness of the external environment. Understanding the distinct roles of body systems is crucial for comprehending how they work together to maintain health and protect against disease.