Final answer:
Cutting the skull as a surgical approach or to relieve intracranial pressure is a procedure called cranial surgery or craniotomy.
Step-by-step explanation:
Cutting the skull as a surgical approach or to relieve intracranial pressure is a procedure called cranial surgery or craniotomy. This surgical technique involves making an incision in the scalp and drilling a hole in the skull to access the brain. It is commonly performed to treat conditions such as craniosynostosis, hydrocephalus, or to remove brain tumors.