What is the primary function of sebaceous glands?

The primary function of sebaceous glands is to produce oil, known as sebum. This oily substance plays a crucial role in maintaining skin health by providing a protective barrier that helps prevent moisture loss and keeps the skin hydrated. Sebum also has antimicrobial properties, which can help to protect the skin from bacterial infections. Additionally, the oil produced by these glands can aid in keeping hair moisturized and healthy.

In contrast, the other options reflect different functions: sweat glands are responsible for producing sweat that aids in thermoregulation; sensory receptors are involved in providing tactile sensation; and temperature regulation relies on a combination of sweat production and blood flow rather than the action of sebaceous glands. Thus, the focus on oil production allows sebaceous glands to fulfill their critical role in skin health and maintenance effectively.