This is an actual surgery and depicts two operations, called craniotomy and craniectomy, in which the skull is opened to access the brain. The normal anatomy of the skull and tissues surrounding the brain are shown.
A craniotomy is a surgical operation in which a bone flap is temporarily removed from the skull to access the brain AndDecompressive craniectomy is a neurosurgical procedure in which part of the skull is removed to allow a swelling brain room to expand without being squeezed. It is performed on victims of traumatic brain injury, stroke and other conditions associated with raised intracranial pressure