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.
Russia was an a empire until 1917 when a socialist union of republics was formed. It was named the Union of Soviet Socialist Republics (USSR).Russia issued its first stamp in 1857, and when the USSR was formed the socialist republics of Armenia, Azerbaijan, Georgia and Ukraine were allow to issued their own stamps.In 1991 the USSR brokeup and 11 former Soviet Republics created the Commonwealth of Independent States.ussia issued its first stamp in 1857, and when the USSR was formed the socialist republics of Armenia, Azerbaijan, Georgia and Ukraine were allow to issued their own stamps. In 1991 the USSR brokeup and 11 former Soviet Republics created the Commonwealth of Independent States.