sulcus

(noun)

any of the grooves that mark the convolutions of the surface of the brain

Related Terms

Examples of sulcus in the following topics:

  • Brain: Cerebral Cortex and Brain Lobes

    • The outermost part of the brain is a thick piece of nervous system tissue called the cerebral cortex, which is folded into hills called gyri (singular: gyrus) and valleys called sulci (singular: sulcus).
    • The cortex is composed of two hemispheres, right and left, which are separated by a large sulcus.