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.
Vitamin B12 in the vegetarian diet. Lacto-ovo-vegetarians will have a reliable source of vitamin B 12 in their diet, provided they consume adequate amounts of dairy products and eggs, although their intake is likely to be lower than in meat eaters.s vitamin B 12 is produced by bacteria in the large intestines of animals, plant-based foods are generally not a source of vitamin B 12. It is therefore a nutrient of concern for vegetarians and particularly for vegans who choose an entirely plant-based diet.