What is the primary function of the sebaceous glands in the skin?

The primary function of the sebaceous glands in the skin is to produce sebum, which is an oily substance that lubricates and protects the skin and hair. Sebum plays a crucial role in maintaining the skin's moisture barrier, preventing it from becoming dry and brittle. Additionally, sebum has antimicrobial properties that can help to protect the skin from harmful microbes and environmental damage.

Sebaceous glands are typically associated with hair follicles, and the sebum they produce is secreted into these follicles before reaching the surface of the skin. This natural oil keeps the skin hydrated and soft, contributing to overall skin health.

In contrast, while collagen and elastin are essential components for skin structure and elasticity, they are produced by fibroblasts, not sebaceous glands. The regulation of skin temperature is primarily managed by sweat glands and the blood vessels in the skin. The removal of dead skin cells is a function performed by the natural exfoliation process and does not involve sebaceous glands. Therefore, the production of sebum by sebaceous glands is fundamental for protecting and maintaining healthy skin.