France and the United Kingdom agreed to support Poland and in August of 1939, German troops began to gather on the Polish border. By September 1st, Germany launched an invasion of Poland.
The brachial plexus is a network of nerves that originate in the neck region and branch off to form most of the other nerves that control movement and sensation in the upper limbs, including the shoulder, arm, forearm, and hand.
(March 2014). A nerve plexus is a plexus (branching network) of intersecting nerves. There are spinal nerve plexuses; as well as other forms of autonomic plexuses, many of which are a part of the enteric nervous system.or the spinal plexuses, except for the ventral rami of Th2-Th12 nerves, they combine sets of ventral rami of spinal nerves that serve the same area of the body into one large grouped nerve. There are several in the body, including: 1  Cervical plexus-serves the head, neck and shoulders.