The anterior cerebral artery extends upward and forward from the internal carotid artery. It supplies the frontal lobes, the parts of the brain that control logical thought, personality, and voluntary movement, especially of the legs. Stroke in the anterior cerebral artery results in opposite leg weakness.
Maria Theresa ruled for forty years the wide empire of Austria. Maria Theresa's first challenge was Prussia. They tried to occupy Silesia after the death of her father.
The Russian empress Catherine II (1729-1796), known as Catherine the Great, reigned from 1762 to 1796. She expanded the Russian Empire, improved administration, and vigorously pursued the policy of Westernization. Her reputation as an enlightened despot, however, is not wholly supported by her deeds.