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...
The Zimmerman telegram was a message from the German foreign secretary to the President of Mexico proposing an alliance in 1917. The German suggestion that Mexico attack the Uâ¦nited States precipitated the American entry into World War I shortly after the contents of the telegram were published.