Final answer:
The area of the body at risk of occlusion of two major arteries is the brain. If blood flow is interrupted to the brain, it can lead to a transient ischemic attack (TIA), or mini-stroke, or a stroke, also known as a cerebrovascular accident (CVA).
Step-by-step explanation:
The area of the body at risk of occlusion of two major arteries is the brain. The internal carotid arteries and the vertebral arteries are the two main suppliers of blood to the brain. If blood flow is interrupted to the brain, it can lead to a transient ischemic attack (TIA), or mini-stroke, or a stroke, also known as a cerebrovascular accident (CVA).