Medical Definition of Lateral ventricle

  • 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.

Lateral ventricle: A communicating cavity in the brain that is part of a system of four communicating cavities that are continuous with the central canal of the spinal cord. The two lateral ventricles are located in the cerebral hemispheres, one in each hemisphere. Each consists of a triangular central body and four horns. The third and fourth ventricles are located in the center of the brain. The lateral ventricles communicate with the third ventricle through an opening called the interventricular foramen. Both lateral ventricles are filled with cerebrospinal fluid.

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Reviewed on 12/27/2018

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