Medical Definition of Parietal

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Reviewed on 12/11/2018

Parietal: Adjective from the Latin "parietalis" meaning "belonging to the wall" that the ancient anatomists used to designate the wall, as of a body cavity.

For examples, there are the:

  • Parietal bone -- the main side bone of the skull.
  • Parietal lobe -- the main side lobe of the brain (it is beneath the parietal bone).
  • Parietal pericardium -- the outer membrane around the heart.
  • Parietal peritoneum -- the membrane lining the abdominal cavity (as opposed to the visceral peritoneum that envelops the abdominal organs).

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Reviewed on 12/11/2018