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What is an oil gland used for?

Published in Human Biology 2 mins read

An oil gland, also known as a sebaceous gland, helps remove old skin cells, keeps the skin lubricated, and prevents the drying of tissues.

Functions of Oil Glands (Sebaceous Glands)

Sebaceous glands are microscopic exocrine glands in the skin that secrete an oily or waxy substance called sebum. These glands are essential for maintaining healthy skin and hair. Here's a detailed breakdown of their functions:

  • Skin Lubrication: Sebum keeps the skin supple and prevents it from becoming dry and cracked. Dry skin is prone to irritation, itching, and infection, so proper lubrication is crucial.

  • Hair Lubrication: Sebum also coats the hair shaft, making it more flexible and less prone to breakage. This contributes to healthier, shinier hair.

  • Waterproofing: Sebum creates a hydrophobic (water-repelling) barrier on the skin's surface, helping to prevent excessive water loss and protecting against external moisture.

  • Protection Against Infection: Sebum contains antimicrobial and antifungal properties, which help to inhibit the growth of harmful microorganisms on the skin. This provides a natural defense against infections.

  • Removal of Old Skin Cells: Sebum helps to loosen and remove dead skin cells from the surface, aiding in the natural exfoliation process. This prevents the buildup of dead cells, which can clog pores and lead to skin problems.

In summary, oil glands are vital for maintaining the health, flexibility, and protection of both skin and hair by secreting sebum, a lubricating and protective substance.