Membrane: This term has several meanings depending on the usage. In reference to a cell, the outer or limiting membrane is the thin, flexible film that encloses the contents of a cell and is comprised of a double layer of lipids containing various attached and embedded proteins; it controls what substances go into and come out of the cell. In reference to a tissue, the membrane is a thin layer of cells that covers the surface of the tissue or lines the cavity of an organ.


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Membranes: Thin layers of tissue which cover parts of the body, separate adjacent cavities, or connect adjacent structures.2


Types may include:3

Types of Membrane:

  • Basement Membrane
  • Basilar Membrane
  • Bowman s Membrane
  • Choroid
  • Descemet s Membrane
  • Episclera
  • External Elastic Membrane
  • Glomerular Basement Membrane
  • Inner Limiting Membrane
  • Internal Elastic Membrane
  • Membrane of the Brain or Spinal Cord
  • Mucosa
  • Outer Limiting Membrane
  • Pericardium
  • Peritoneum
  • Pleural Tissue
  • Serosa
  • Suprachorioid Lamina
  • Synovial Membrane
  • Tectorial Membrane
  • Vestibular Membrane

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  1. Source: RDCRN (NCATS/NIH): cms/ rld/ Learn-More/ Glossary
  2. Source: MeSH (U.S. National Library of Medicine)
  3. Source: NCI Thesaurus

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Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.