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.
Portugal is located in the continent of Europe. Spain and the Alantic Ocean border Portugal. Europe.  Portugal is right next to Spain (both of these nations are part of  what is known as the Iberian Peninsula) at the western end of  Europe.   Portugal is located in southwestern Europe. Portugal and Spain make  up the Iberian Peninsula. The latitude of the Iberian Peninsula is  40'00 North.