Internal carotid aery crosses
Inside the middle cranial fossa, it first runs forwards along the floor and medial wall of the cavernous sinus and then turns upwards on the medial side of the anterior clinoid process.(Ref: Vishram Singh textbook of clinical neuroanatomy second edition pg 175)
Sigmoid sinus
Straight sinus
Cavernous sinus
Saggital sinus
Brain 