Final answer:
Epidural hematoma occurs when a blow to the lateral side of the head causes fractures in the pterion, leading to bleeding and blood accumulation between the brain and skull interior. This can result in increased pressure on the brain and serious consequences if not treated promptly.
Step-by-step explanation:
When it comes to epidural hematoma, it's important to remember that a blow to the lateral side of the head can fracture the bones of the pterion, which is a clinical landmark. This landmark is significant because it is in close proximity to a major artery that supplies the skull and brain. If the artery is damaged, bleeding can occur and result in the formation of a hematoma between the brain and the skull interior. This accumulation of blood exerts pressure on the brain and can lead to severe symptoms and even death if left untreated.