The lymphatic system consists of a human lymphatic vessels and lymph nodes located in their turn. Lymph nodes - a factory for the formation of lymphocytes and antibodies - the main defenders of the human body from various infections and foreign bodies.

The main functions of the lymph nodes

Lymph nodes perform drainage, protective functions are involved in the metabolism and digestion.

The drainage function helps cleanse the body Cleansing the body - comprehensive restoration   from any foreign particles - bacteria, tumor cells and so on. The lymph nodes of all these particles are absorbed by special cells - macrophages.

The protective function - this formation in the lymph nodes of immune cells - lymphocytes responsible for cellular and humoral immunity, as well as specific proteins - antibodies, performing functions of antibodies. In addition, the lymph nodes produce special biologically active substance - leukocyte factor that promotes the growth of immune cells.

Lymph nodes are actively involved in metabolism Metabolism: The basis of life of all living things Including mineral salt - they redistribute fluid and mineral substances between the blood and lymph. Lymph nodes help to improve digestive processes, as output from the intestine of toxic metabolic products.

Kinds

Externally lymph nodes - a pink-gray components, bean-shaped or strip arranged along the lymphatic vessels, arteries and veins. Typically lymph nodes are arranged in clusters, which is from one to two to several dozen of lymph nodes.

In adults, the average age in the body, one can count more than 450 nodes, which together weigh about one kilogram. But with age, they become less and less: some of them merged with each other, and a part ceases to function, being replaced by fat and connective tissue after previous inflammation.

Lymph nodes, which are located in the subcutaneous tissue, are bean-shaped, these are, for example, the axillary lymph nodes Axillary lymph nodes - signals about trouble in the mammary glands . Adjacent to the side of the blood vessels are thickened lymph nodes. Lymph nodes that are on the walls of the cavities of the body (chest, abdominal, pelvic cavity) is called the parietal or somatic, and the nodes through which the lymph flows from the internal organs - visceral. Units that receive lymph from both of the musculoskeletal system (muscles, joints), as well as internal organs, are called mixed.

Lymph nodes are located in different parts of the body, different shape, size and internal structure that is associated with the peculiarities of a particular function of the body. At the same time, the structure of all the lymph nodes has a lot of similarities.

The localization of lymph nodes

The lymph nodes in the body unevenly distributed. Thus, in some areas, they are in an amount of from one to four (occipital, BTE, lingual, and others), in others their number reaches several hundred (e.g., mesenteric lymph nodes). Large Groups (several dozen) are located visceral lymph nodes - tracheobronchial, stomach, etc.).

When this bit nodes extremities - ulnar and popliteal only (one-node four on each side) and anterior tibial assembly on the front surface of the tibia.

Total in the human body, there are a group of 61 lymph nodes .  This occipital, BTE, parotid, retropharyngeal, mandibular, submandibular, lingual, buccal, submental, superficial and deep neck, predgortannye, suprascapular, axillary, pectoral, subscapular, elbow, trachea, upper and lower tracheobronchial, bronchopulmonary, pulmonary, front and rear mediastinal, okologrudinnoy, intercostal, diaphragmatic, epigastric, lumbar, celiac, left and right stomach, the left and right digestive gland, lymph nodes greater omentum, liver, pancreaticoduodenal, pankreatoselezenochnye, pyloric, superior mesenteric, iliac colon, right, left, middle and lower shell, common, internal and external iliac, anal, sacral, gluteal, obturator, superficial and deep inguinal, popliteal, anterior tibial node .

Most of the lymph nodes can be felt only when they increase. Lymph nodes can be increased if an increased load is carried in the form of delays and destruction of infectious agents and tumor cells. In this case, they can be felt as a dense painful nodules of varying size. Sometimes all the lymph nodes increases Lymph nodes - what keeps our immune system   in the art, the whole forming conglomerates.

Lymph nodes are increased only when the body something unfavorable. This condition requires immediate treatment to the doctor.

Galina Romanenko

There are many reasons why you need to take a multivitamin. Even the most well-organized diet can not provide the body with a daily norm of all nutrients, which has more than forty In addition, many people eat defective for various reasons: a strict diet, poor appetite, a need for certain nutrients and unhealthy food. One tablet of multivitamin a day - this is the easiest way to make up for the lack of nutrients in the body. But choose a multivitamin from a variety of available products from different manufacturers and types not an easy task. So where do you start?

Why do we need a multivitamin

In a nutshell, you are advised, if you try to count, does a your diet all the nutrients needed for health and well-being nice.

Healthy food is still the best source of vitamins, minerals and nutrients. Multivitamins do not replace a healthy diet Healthy eating - do not limit yourself to eating   or a healthy lifestyle, but they represent a reserve source of nutrients for the body in cases where the diet is poor. If you exclude from your diet entire food groups or your food is diverse enough, then taking a multivitamin once a day will do you more good.

Fiber can be used as a special dietary supplement, but it is best to get fiber from their normal food.

And despite some controversial facts about the benefits of multivitamins and their ability to prevent the development of diseases, many people are vitamin complexes include in your diet to maintain or improve their health.

According to the Center for Disease Control United States, more than half of Americans take dietary supplements for food. Multivitamins - is one of the most popular nutritional supplements Food additives - basic classification . 40% of respondents of both sexes admitted that taking a daily multivitamin.

According to studies, for most people as a backup source of nutrients suitable multivitamin that need to be taken once a day, with a high content of vitamin D. It is also a good option to support the body's defenses is vitamin complexes, containing 100% RDA of vitamins and most of the essential minerals.

Not all experts agree that the daily intake of multivitamins to really bring great benefits to the body. But when it comes to filling the disadvantages of diet, multivitamin not only help maintain our overall health, but also help to prevent chronic diseases or other health risks. For example, women are taking supplements containing folic acid, to prevent the occurrence of birth defects in newborns, or supplements with calcium and vitamin D, in order to reduce the risk of osteoporosis.

Nutritional deficiencies in the diet is more likely than their excess while taking a multivitamin. In many people's diet contains enough nutrients, so daily supplementation of vitamins and minerals not only do no harm, but on the contrary, will help to improve the nutritional value of the diet.

How to choose a multivitamin

• You should carefully read the label. On the product label must indicate what nutrients it contains, as well as how much of the substances contained in a daily dosage of multivitamins.
• It is best to choose a vitamin complexes, containing essential vitamins and minerals. The structure of most of multivitamin supplements include the following vitamins and minerals: vitamin C, B1 (thiamine), B2 (riboflavin), B3 (vitamin PP), B6, folic acid Folic acid - the value is hard to overestimate   (B9), B12, B5 (pantothenic acid), biotin, vitamins A, E, D2 or D3 (cholecalciferol), K, potassium, iodine, selenium salt, boric acid, zinc, calcium, magnesium, manganese, molybdenum, beta carotene, and iron.
• It should pay attention to the percentage of nutrients in a multivitamin. As a rule, the most effective ones multivitamin that contains 100% daily requirement of most of the contained therein vitamins and minerals. Some elements, such as calcium and magnesium, rarely make 100% of the daily intake, since then the tablet containing the daily dosage of nutrients, it would be impossible to swallow because of its large size.
• It is best to choose a multivitamin containing more healthy ingredients. Today on sale there are many different vitamins for people with different nutritional needs and different diseases. As the most widely used supplements can be called with or without iron and high vitamin complexes containing at least two thirds of nutrients recommended for a healthy diet. Other multivitamins contain additional specially selected substances, such as antioxidants Antioxidants: the truth about the notorious benefits . There are also nutritional supplements that should be used under certain conditions, such as prenatal vitamins.
• There are vitamin complexes separately for men, women and for different age groups. You can choose a multivitamin in accordance with their age, sex t, so that the elements contained in the bioadditive suits you.
• Avoid excesses. It is not necessary to purchase a multivitamin, the content of nutrients that exceed 100% of the recommended rate of waste. Since taking supplements in addition to the basic food, which also has the nutrients and sometimes in large quantities, and some elements may accumulate and become toxic.