Vertebrobasilar insufficiency is a condition characterized by poor blood flow to the posterior (back) portion of the brain, which is fed by two vertebral arteries that join to become the basilar artery. Blockage of these arteries occurs over time through a process called atherosclerosis, or the build-up of plaque.
No, Portugal is not a Mediterranean country. It does, however, have a mediterranean climate, but it is not considered a mediterranean country because the south does not have the Mediterranean Sea as a coast.
Mediterranean Sea. The Mediterranean Sea is a part of Atlantic sea that is bounded by the Mediterranean region and is connected to the Atlantic Ocean. Occasionally it is called as the Eurafrican Mediterranean Sea or the European Mediterranean Sea. The sea is almost wholly enclosed by land on the north by Anatolia and Europe, on the south by Africa, and on the east by the Levant.