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  2. Supratentorial region - Wikipedia

    en.wikipedia.org/wiki/Supratentorial_region

    The supratentorial region contains the cerebrum, while the infratentorial region contains the cerebellum. Although the Roman era anatomist Galen commented upon it, the functional significance of this neuroanatomical division was first described using ‘modern’ terminology by John Hughlings Jackson, founding editor of the medical journal Brain.

  3. Cerebellar tentorium - Wikipedia

    en.wikipedia.org/wiki/Cerebellar_tentorium

    The location of the tumor can help in determining the type of tumor, as different tumors occur with different frequencies at each location. Additionally, most childhood primary brain tumors are infratentorial, while most adult primary brain tumors are supratentorial. The location of the tumor may have prognostic significance as well.

  4. Tentorial notch - Wikipedia

    en.wikipedia.org/wiki/Tentorial_notch

    The tentorial notch is located between the tentorial edges and communicates the supratentorial and infratentorial spaces. This area can be divided into three spaces: anterior, middle (lateral to), and posterior to the brainstem. The middle incisural space is close to the midbrain and the upper pons at the level of the pontomesencephalic sulcus.

  5. Brain herniation - Wikipedia

    en.wikipedia.org/wiki/Brain_herniation

    Brain herniation is a potentially deadly side effect of very high pressure within the skull that occurs when a part of the brain is squeezed across structures within the skull. The brain can shift across such structures as the falx cerebri , the tentorium cerebelli , and even through the foramen magnum (the hole in the base of the skull through ...

  6. Subarachnoid cisterns - Wikipedia

    en.wikipedia.org/wiki/Subarachnoid_cisterns

    There are many cisterns in the brain with several large ones noted with their own name. At the base of the spinal cord is another subarachnoid cistern: the lumbar cistern which is the site for a lumbar puncture. Some major subarachnoid cisterns: Cisterna magna also called cerebellomedullary cistern - the largest of the subarachnoid cisterns.

  7. Posterior cranial fossa - Wikipedia

    en.wikipedia.org/wiki/Posterior_cranial_fossa

    The posterior cranial fossa is the part of the cranial cavity located between the foramen magnum, and tentorium cerebelli. It is formed by the sphenoid bones, temporal bones, and occipital bone. It lodges the cerebellum, and parts of the brainstem.

  8. Infratentorial region - Wikipedia

    en.wikipedia.org/wiki/Infratentorial_region

    In anatomy, the infratentorial region of the brain is the area located below the tentorium cerebelli. The area of the brain above the tentorium cerebelli is the supratentorial region. The infratentorial region contains the cerebellum, while the supratentorial region contains the cerebrum. The infratentorial dura is innervated by nerves from C1-C3.

  9. Central nervous system primitive neuroectodermal tumor

    en.wikipedia.org/wiki/Central_nervous_system...

    A central nervous system primitive neuroectodermal tumor, often abbreviated as PNET, supratentorial PNET, or CNS-PNET, [1] is one of the 3 types of embryonal central nervous system tumors (medulloblastoma, atypical teratoid rhabdoid tumor, and PNET). [2]