Which two parts of the body do NOT contain oil glands?

The palms of the hands and the soles of the feet are the correct choices because these areas are devoid of sebaceous (oil) glands. Sebaceous glands are responsible for producing oil that helps to protect and moisturize the skin. However, the skin on the palms and soles is particularly thick and keratinized, serving as a protective barrier, which is why oil glands are absent in these regions.

In contrast, the other options include areas of the body that do contain oil glands. The back and arms have sebaceous glands that secrete oil; similarly, the face and neck are known for having a high density of these glands to maintain hydration and protect against environmental factors. The thighs and abdomen also possess oil glands, contributing to the overall function of skin health in those areas. Understanding the distribution of oil glands on the body is essential for professionals in the beauty and skincare fields, especially when considering treatments like waxing.