Falx cerebri
Falx Cerebri
Falx cerebri (pronunciation: /fælks ˈsɛrɪbraɪ/), also known as the cerebral falx, is a strong, arched fold of dura mater that descends vertically in the longitudinal fissure between the cerebral hemispheres.
Etymology
The term "falx cerebri" is derived from Latin, where "falx" means sickle and "cerebri" pertains to the brain. Thus, it refers to the sickle-shaped fold of the dura mater in the brain.
Anatomy
The falx cerebri attaches anteriorly at the crista galli and posteriorly to the tentorium cerebelli. It serves to separate the two cerebral hemispheres and contains the superior sagittal sinus and inferior sagittal sinus, which are channels for venous blood.
Related Terms
- Dura mater: The tough outermost membrane enveloping the brain and spinal cord.
- Longitudinal fissure: The deep groove that separates the two hemispheres of the vertebrate brain.
- Cerebral hemispheres: The two halves of the cerebrum, the part of the brain that controls muscle functions and also controls speech, thought, emotions, reading, writing, and learning.
- Crista galli: A small upward bony projection located at the midline in the ethmoid bone in the brain.
- Tentorium cerebelli: An extension of the dura mater that separates the cerebellum from the inferior portion of the occipital lobes.
- Superior sagittal sinus: The largest dural venous sinuses, which collect blood from the brain for return to the heart.
- Inferior sagittal sinus: A dural venous sinus on the inferior surface of the falx cerebri, which drains into the straight sinus.
External links
- Medical encyclopedia article on Falx cerebri
- Wikipedia's article - Falx cerebri
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