During concussion (a type of traumatic brain injury) the brain will move within the cranial cavity. damage is caused to the brain as it crashes into parts of the bony cavity walls. ironically one of the bone markings that can cause serious damage to the brain is the this is ironic because one of the functions of this bone marking is to

crista galli; attach to the dura matter holding the brain in place

Explanation:

The ethmoid bone is located on the viscerocranium axis (skeleton of the face) in its anterior region. This bone is characterized by its short and light shape with a spongy structure. It has a complex and peculiar anatomy, consisting of two blades and a series of mazes. The lamina called cibriform has a small prominence in its superior region, called Crest galli. This prominence bears this name because it resembles a rooster crest. In addition, the galli crest is responsible for attaching to hard matter holding the brain in place, which can be ironical because the galli crest can cause damage to the brain that has left the place.