The Posterior Lobe of the Pituitary Gland (or neurophpophysis) stores and releases hormones secreted by the hypothalamus section of the brain including: 1  ADH (Antidiuretic hormone) stimulates the smooth muscles, blood vessels and the intestine.
In 1922, the Communists were victorious, forming the Soviet Union with the unification of the Russian, Transcaucasian, Ukrainian, and Byelorussian republics. Following Lenin's death in 1924, a troika and a brief power struggle, Joseph Stalin came to power in the mid-1920s.he Soviet Union was a single-party state, governed by the Communist Party with Moscow as its capital. The Soviet Union had its roots in 1917 when the Bolsheviks, headed by Vladimir Lenin, led the October Revolution which overthrew the provisional government that had replaced the Tsar.
SINCE GAINING ITS INDEPENDENCE with the collapse of the Soviet Union at the end of 1991, Russia (formally, the Russian Federation) has faced serious challenges in its efforts to forge a political system to follow nearly seventy-five years of centralized, totalitarian rule.n late 1991, the Yeltsin government assumed budgetary control over Gorbachev's rump government. Russia did not declare its independence, and Yeltsin continued to hope that some form of confederation could be established.