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.
On June 7, 1494 Spain and Portugal met at Tordesillas, Spain and signed a treaty moved the line 270 leagues west, to 370 leagues west of Cape Verde. This new line (located at approximately 46Â° 37') gave Portugal more claim to South America yet also provided Portugal with automatic control over most of the Indian Ocean.razil's Portuguese-speaking population is a result of the Treaty of Tordesillas. Portugal and Spain ignored an order from the Pope in enacting their treaty but all was reconciled when Pope Julius II agreed to the change in 1506.