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.
Vegetarians who do not consume dairy can easily meet their calcium needs through dietary sources. Vegetarian calcium needs are the same Dietary Reference Intakes as the general population. Greens such as spinach, turnip and collard greens are rich sources of calcium, as are all types of beans.Calcium fortified non-dairy milks as well as fortified tofu and orange juice can supply calcium in a vegetarian diet as well.. Zinc. Zinc plays an important role in the body's immune system and deficiency is rare because of the readily available food sources. The Recommended Dietary Allowances for zinc are 11 mg per day for men and 8 mg per day for women. For the vegetarian or vegan, legumes, oats, nuts and seeds are rich zinc sources.