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.
The collapse of the Soviet Union started in the late 1980s and was complete when the country broke up into 15 independent states on December 25, 1991. This signaled the end of the Cold War between the Soviet Union and the United States. Mikhail Gorbachev Becomes General Secretary.