OSMT (Ontario Society of Medical Technologists) Practice Exam

What are the functions of the skin?

1. infection control

2. excretion of waste

3. maintenance of fluid balance

4. all of the above

The correct answer is: all of the above

The skin serves multiple essential functions, which is why the correct answer is that all of the listed functions are indeed applicable. Infection control is a critical role of the skin, as it acts as a barrier to pathogens, helping to prevent infections. The outermost layer of the skin, known as the epidermis, contains cells that can help in signaling the immune system to respond to potential threats. Additionally, the skin plays a vital role in the excretion of waste. Through sweat glands, the skin helps eliminate waste products such as urea and salts. This process is essential for detoxifying the body and maintaining homeostasis. Furthermore, the skin is involved in the maintenance of fluid balance. It helps to minimize water loss from the body, which is crucial for hydration and overall physiological function. The skin’s barrier properties prevent excess moisture loss and help retain essential fluids. Given these multiple roles, it is clear that the cumulative functions of the skin encompass infection control, waste excretion, and the maintenance of fluid balance.