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What is the function of the sebaceous gland?

Published in Skin Physiology 1 min read

The primary function of sebaceous glands is to produce and secrete sebum.

What is Sebum?

Sebum is a complex oily substance. It consists of various components, including:

  • Triglycerides
  • Fatty acid breakdown products
  • Wax esters
  • Squalene
  • Cholesterol esters
  • Cholesterol

Functions of Sebum

Sebum serves several important functions for the skin:

  • Lubrication: Sebum lubricates the skin's surface. This reduces friction and prevents chafing.
  • Moisture Barrier: Sebum creates a protective barrier on the skin. This barrier helps to make the skin more impervious to moisture. It prevents excessive water loss and keeps the skin hydrated.
  • Protection: Sebum has some antimicrobial properties, which can help protect the skin from certain bacteria and fungi. Although this function is minor compared to other protective mechanisms.

Table of Sebaceous Gland Functions

Function Description
Sebum Secretion Produces and releases sebum, a complex oily substance.
Skin Lubrication Reduces friction and prevents chafing by lubricating the skin.
Moisture Barrier Creates a barrier that makes the skin more resistant to moisture loss.
Protection Provides some protection against microbial invaders.

In Summary

Sebaceous glands are crucial for maintaining skin health by producing and secreting sebum which lubricates, protects and helps in water retention.