<Ul> <Li> Falx cerebri, the largest, sickle - shaped; separates the cerebral hemispheres . Starts from the frontal crest of frontal bone and the crista galli running to the internal occipital protuberance . </Li> <Li> Tentorium cerebelli, the second largest, crescent - shaped; separates the occipital lobes from cerebellum . The falx cerebri attaches to it giving a tentlike appearance . </Li> <Li> Falx cerebelli, vertical infolding; lies inferior to the tentorium cerebelli, separating the cerebellar hemispheres . </Li> <Li> Diaphragma sellae, smallest infolding; covers the pituitary gland and sella turcica . </Li> </Ul> <Li> Falx cerebri, the largest, sickle - shaped; separates the cerebral hemispheres . Starts from the frontal crest of frontal bone and the crista galli running to the internal occipital protuberance . </Li> <Li> Tentorium cerebelli, the second largest, crescent - shaped; separates the occipital lobes from cerebellum . The falx cerebri attaches to it giving a tentlike appearance . </Li> <Li> Falx cerebelli, vertical infolding; lies inferior to the tentorium cerebelli, separating the cerebellar hemispheres . </Li>

Mention the position and the function of the meninges