Final Thoughts on Vitamin B12 Injections. 1  Vitamin B12 injections (or shots) are used to overcome vitamin B12 deficiency, which is common especially among the elderly, those with intestinal damage or disorders, people with pernicious anemia, and vegetarians/vegans.
Neurons communicate over long distances by sending signals called nerve impulses through the axons which make up a tract or nerve. Because each axon may branch into a whole tree, and because nerve impulses go down each branch when an axon divides, a single neuron may send signals to thousands of other neurons.
Communication between neurons. Benoit Zuber. Communication between neurons, or nerve cells, is the cellular basis for thinking, decision making, and control of muscular movements. Neurons are cells with a particular shape: they possess two types of long ramification, called the axon and the dendrites.The axon of one neuron is in contact with the dendrites of other neurons. These contacts are termed synapses.enoit Zuber. Communication between neurons, or nerve cells, is the cellular basis for thinking, decision making, and control of muscular movements.