Cerebral falx

Cerebral Falx is a dural fold that separates the two cerebral hemispheres of the brain. It is also known as the falx cerebri.

Anatomy

The cerebral falx is a sickle-shaped fold of dura mater, the outermost layer of the meninges. It is located in the midline of the brain, separating the left and right cerebral hemispheres. The anterior part of the cerebral falx attaches to the crista galli, a small upward bony projection off the cribriform plate at the frontal part of the skull. The posterior part of the cerebral falx attaches to the tentorium cerebelli, another dural fold that separates the cerebrum from the cerebellum.

Function

The primary function of the cerebral falx is to provide support and protection for the brain. It helps to maintain the shape of the brain and prevent excessive movement of the brain within the skull during head movements. The cerebral falx also contains the superior sagittal sinus and inferior sagittal sinus, which are channels for the drainage of cerebrospinal fluid and venous blood from the brain.

Clinical significance

Abnormalities of the cerebral falx, such as a falx cerebri herniation, can occur due to increased intracranial pressure. This can be caused by conditions such as brain tumors, traumatic brain injury, or hydrocephalus. A falx cerebri herniation can lead to serious complications, including brain damage and death.

See also

• Meninges
• Cerebral hemisphere
• Brain anatomy

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