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 for Vegetarians. This essential B vitamin helps maintain a healthy nervous system, but is not available in many plants. Thatâs why certain foods (including yeast extracts, soy milks and veggie burgers) are fortified with vitamin B12.f you are a vegetarian who is also an endurance athlete, you may be at particular risk for vitamin B12 deficiency. Additionally, certain medications, when taken regularly, also affect how B vitamins are metabolized. These medications include: acid blockers, anti-inflammatory painkillers and antibiotics.