Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

URL of this page: //medlineplus.gov/ency/article/002264.htm

Mucosa

Mucosa is moist tissue that lines certain parts of the inside of your body. It is in your:

  • Nose
  • Mouth
  • Lungs
  • Digestive tract
  • Urinary and genital tracts

Glands in this tissue release a thick fluid called mucus.

Alternative Names

Mucous membrane

Images

References

Merriam-Webster Dictionary. Mucosa. www.merriam-webster.com/dictionary/mucosa. Accessed January 17, 2023.

Review Date 10/20/2022

Updated by: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.