Falx cerebelli
Encyclopedia
The falx cerebelli is a small triangular process of dura mater
, received into the posterior cerebellar notch.
Its base is attached, above, to the under and back part of the tentorium cerebelli
; its posterior margin, to the lower division of the vertical crest on the inner surface of the occipital bone
.
As it descends, it sometimes divides into two smaller folds, which are lost on the sides of the foramen magnum.
Dura mater
The dura mater , or dura, is the outermost of the three layers of the meninges surrounding the brain and spinal cord. It is derived from Mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater. The dura surrounds the brain and the spinal cord and is responsible for...
, received into the posterior cerebellar notch.
Its base is attached, above, to the under and back part of the tentorium cerebelli
Tentorium cerebelli
The tentorium cerebelli or cerebellar tentorium is an extension of the dura mater that separates the cerebellum from the inferior portion of the occipital lobes.-Anatomy:...
; its posterior margin, to the lower division of the vertical crest on the inner surface of the occipital bone
Occipital bone
The occipital bone, a saucer-shaped membrane bone situated at the back and lower part of the cranium, is trapezoidal in shape and curved on itself...
.
As it descends, it sometimes divides into two smaller folds, which are lost on the sides of the foramen magnum.