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 …

Oct 30, 2023 · The free anterior margin contains a large U-shaped hiatus called the tentorial notch, which provides passage to the midbrain and the superior aspect of the cerebellar vermis.

Jul 7, 2025 · The anterior portion contains the tentorial notch (or tentorial incisure/incisura) which is a U-shaped (concave) free edge and extends anteriorly to attach to the anterior clinoid processes 1.

The tentorial notch is a small opening situated at the front of the tentorium cerebelli. It permits the midbrain to descend into the posterior cranial fossa, continuing as the pons and medulla oblongata.

Sep 30, 2024 · One of the most dramatic examples is tentorial herniation. This occurs when increased pressure in the supratentorial space (above the tentorium) forces brain tissue to push through the …

The free margin is located at the anterior edge and forms a U-shape termed the tentorial notch or the incisura tentoria (Figures 5-7). The tentorial notch allows for the presence of a gap, which lodges the …

Dec 6, 2025 · tentorial notch noun : an oval opening that is bounded by the anterior border of the tentorium cerebelli, that surrounds the midbrain, and that gives passage to the posterior cerebral …

The tentorial notch refers to the anterior opening between the free edge of the cerebellar tentorium and the clivus for the passage of the brainstem.

On the basis of numerical data collected from this study, the authors have developed the first classification system of the tentorial notch and present new neuroanatomical observations pertaining …

The tentorial notch is an opening in the tentorium cerebelli, formed by the free edges of the tentorium cerebelli, that surrounds the midbrain at the transition between the posterior fossa and the middle …