Each neuron consists of a cell body or perikaryon, from which arise the nerve fibers. And each neuron has two kinds of fibers: a single axon, which conveys nerve impulses away from the cell body, and one or more dendrites, which convey nerve impulses towards the cell body. Neurons are functionally linked by their fibers at connections called synapses. All neurons are post-mitotic.
However, unbalanced vegetarian diets may be lacking in a number of important nutrients. To ensure that you are eating a balanced vegetarian diet, you should regularly consume sources of vitamin B-12, iron, zinc, omega-3 fatty acids and essential amino acids.
Iron and Zinc. Two minerals that may be lacking in vegetarian diets are iron and zinc. There are many rich plant sources of both zinc and iron, such as soy products, nuts and whole grains. However, as your body does not easily absorb non-animal sources, zinc and iron levels in your body may not reflect your intake.