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Parenchyma

Dr Jeremy Jones et al.

In anatomy, parenchyma refers to the functional part of an organ in the body. This is in contrast to the stroma or interstitium, which refers to the structural tissue of organs, such as the connective tissues.

Embryologically, the majority of organ parenchyma develops from the ectoderm or endoderm, rather than mesoderm:

  • ectoderm: brain, skin
  • mesoderm: spleen, kidneys, heart
  • endoderm: lungs, gastrointestinal tract, liver, pancreas

Article information

rID: 14498
Section: Anatomy
Tag: stub, refs, cases
Synonyms or Alternate Spellings:

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