motor neuron, one of various efferent nerve cells that transmit nerve impulses from the brain or from the spinal cord to muscular or glandular tissue. According to location, some kinds of motor neurons are the peripheral motor neurons and the upper motor neurons. Also called motoneuron.
The Zimmerman telegram probably had a peripheral effect on breaking the isolationist sentiment in the US in WWI. Relations with Mexico were strained already (Veracruz was occupied) but once Huerta was gone, the Mexican neutrality in the World Wa...
Arthur Zimmermann (5 October 1864 â 6 June 1940) was State Secretary for Foreign Affairs of the German Empire from 22 November 1916 until his resignation on 6 August 1917. His name is associated with the Zimmermann Telegram during World War I. However, he was closely involved in plans to support an Irish rebellion, an Indian rebellion, and to help the Communists undermine Tsarist Russia.