NEET PG DENTAL EXAM

Detailed explanation-1: -Cerebral aneurysms located at the posterior communicating artery and in the arteries in the back part of the brain (called the vertebral and basilar arteries) are common and have higher risk of rupture than aneurysms at other locations.

Detailed explanation-2: -Approximately 85–90% of saccular aneurysms occur in the anterior circulation, with the most common locations being the anterior communicating artery, the internal carotid artery at the origin of the posterior communicating artery, and the middle cerebral artery at its first major division.

Detailed explanation-3: -A brain aneurysm can lead to a stroke, but not the other way around. The weakening of the blood vessel wall that occurs during an aneurysm can eventually rupture, sending blood to the brain and leading to a stroke. A stroke happens when blood flow to the brain is impeded.