Dictionary > Medial longitudinal fissure

Medial longitudinal fissure

Definition
noun
A median fissure separating the two hemispheres of the vertebrate brain
Supplement
The cerebrum of vertebrates, including humans, is divided by two hemispheres referred to as left and right cerebral hemispheres. A fissure exists between the two hemispheres and is referred to as median longitudinal fissure.
The median longitudinal fissure is a deep groove in between the two hemispheres. It is also called cerebral fissure or interhemispheric fissure. It is also referred to as simply longitudinal fissure. The falx celebri (or cerebral fals), a fold of the dura mater, covers it. Beneath this fissure is a corpus callosum. The corpus callosum (also called callosal commissure) is a bundle of commissural fibers that spans part of the median longitudinal fissure, and allows communication between the left and the right cerebral hemispheres.
The median longitudinal fissure should not be confused with another major groove in the brain, the central sulcus. The central sulcus is a fold in the cerebral cortex in vertebrate brain. It separates the parietal lobe from the frontal lobe and the primary motor cortex from the primary somatosensory cortex. The central sulcus is also called the central fissure or the fissure of Rolando.
Synonym(s):

  • longitudinal fissure
  • cerebral fissure
  • interhemispheric fissure

See also:

  • cerebrum


    You will also like...

    vitamins
    A Balanced Vitamin Diet – Vitamins A – K

    A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

    Principles of Hormonal Control Systems
    Principles of Hormonal Control Systems

    Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

    Digestion and Absorption of Food
    Digestion and Absorption of Food

    The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

    Genetic engineering
    Genetic Engineering Advantages & Disadvantages

    This tutorial presents the benefits and the possible adverse eventualities of genetic engineering. Know more about this ..

    Hominid
    The Hominids

    The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..

    Regulation of Biological Systems
    Regulation of Biological Systems

    Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..