epithelial tissue

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epithelial tissue

A diagram shows epithelial tissue lining the inside of a human organ.

Definition
  1. Noun:
    • A membranous tissue covering internal organs and other internal surfaces of the body: Epithelial tissue is a primary animal tissue that forms continuous sheets of cells. It lines the cavities and surfaces of blood vessels and organs throughout the body, serving as a protective barrier, and is involved in secretion, absorption, and sensation.
Usage Examples
  • Noun:
    • The skin is composed of layers of epithelial tissue.
    • Damage to the epithelial tissue lining the stomach can lead to ulcers.
    • The primary function of this epithelial tissue is absorption of nutrients.
Advanced Usage
  • "Simple epithelial tissue": Refers to a single layer of epithelial cells.
    • Simple epithelial tissue is found in areas where filtration or absorption is the primary function, such as the kidneys.
  • "Stratified epithelial tissue": Refers to multiple layers of epithelial cells.
    • Stratified epithelial tissue provides protection in areas subject to wear and tear, like the skin and esophagus.
Variants and Related Words
  • Epithelium (n): Another term for epithelial tissue, often used interchangeably.
    • The cornea is covered by a transparent epithelium.
  • Epithelial (adj): Of or relating to epithelial tissue.
    • The biopsy showed abnormal epithelial cells.
Synonyms
  • Epithelium: The cellular covering of internal and external body surfaces.
  • Surface tissue: A descriptive synonym emphasizing its location and protective role.
Related Phrases
  • Epithelial layer: A specific sheet or stratum of epithelial cells.
    • The intestinal epithelial layer is constantly renewed.
  • Epithelial barrier: Refers to the protective function of the tissue.
    • The epithelial barrier prevents pathogens from entering the bloodstream.
Related Concepts
  • Basement membrane: The thin, fibrous layer underlying the epithelial tissue to which it attaches.
    • The epithelial tissue is anchored to the connective tissue by a basement membrane.
  • Glandular epithelium: A type of epithelial tissue specialized for secretion.
    • The pancreas contains glandular epithelium that produces digestive enzymes.
epithelial tissue

A diagram shows epithelial tissue lining the inside of a human organ.

Noun
  1. membranous tissue covering internal organs and other internal surfaces of the body

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