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 history of Russia between 1922 and 1991 is essentially the history of the Union of Soviet Socialist Republics, or Soviet Union. This ideologically based union, established in December 1922 by the leaders of the Russian Communist Party, was roughly coterminous with Russia before the Treaty of Brest-Litovsk.