What is the primary function of sebaceous glands?

The primary function of sebaceous glands is the secretion of sebum. Sebum is an oily substance that plays a crucial role in maintaining skin health and moisture. By producing sebum, these glands help to create a protective barrier on the skin’s surface, which prevents water loss and keeps the skin hydrated. This oily secretion also has antibacterial properties, which can help protect the skin from pathogens and maintain overall skin integrity. Additionally, sebum contributes to the condition and appearance of hair, providing it with a degree of shine and moisture. Understanding this function emphasizes the importance of sebaceous glands in both skin and hair health, distinguishing them from other gland types, such as sweat glands or those involved in pigmentation.