The only department of the large intestine that is not connected to the portal vein is the lower section of the rectum. Venous blood from this part of the intestine does not pass through the liver, that is, it goes straight to the heart.

The anatomical regular order of the organs through which the venous blood passes is from the whole intestinal tract-the tract is indicated by green lines-the blood and lymphatic vessels of the large intestine and the portal vein capillaries (1), the portal vein (2), the capillary and venous system of the liver (3) the right ventricle of the heart (4), capillaries of the lungs (5).

In parallel with the green lines in blue, the move is indicated - venous blood, red - arterial blood.

Note. In the figure, features (1) indicate the portal vein capillaries located in the right ascending and left descending sections of the large intestine. The remaining capillaries of the portal vein, as seen in the figure, are located throughout the intestinal tract - venous blood also passes through them. MAKE CONCLUSIONS.


All the listed diseases begin with endocrine diseases and at the same time, they also dominate. In this connection, one advice, if you are planning to check your health, then start with the endocrinologist's office, and check the status of the endocrine glands, thymus gland, adrenal glands, islet part of the pancreas, ovaries and especially the thyroid gland ...

This scheme was made taking into account the anatomical structure - the inferior vena cava carrying the blood from all the lower parts of the body, that is, starting from the capillary of the great circle of circulation, where the blood, after washing all tissues and giving them oxygen, is transformed from arterial to venous and ending with the right atrium . 
The system analysis of pathologies was built along the way (movement) - venous blood passing through the vessels of the colon, capillaries of the portal vein, venous system of the liver, right ventricle of the heart and lung capillaries.

Such an anatomical map - the scheme allows you to trace the development of any disease from the very beginning. Beginning with the blood and lymphatic vessels and the capillary of the large intestine, then the portal vein, after passing the liver, the right ventricle of the heart and the capillaries of the lungs, where the blood enters the unstable connection with hemoglobin of erythrocytes, mixes with oxygen, gives carbon dioxide and turns into arterial. And ending with the left atrium, that is, before the coronary (coronary) circulation. In fact, before the coronary vessels supply the heart muscle, the functionality of which depends, the violation of the coronary circulation, leading to oxygen starvation of the myocardium and the development of coronary heart disease.
When contaminating the intestines, dirty blood from the large intestine enters the liver. If the liver does not cope with cleansing, then dirt with a current of blood is carried to the kidneys, lungs, maxillary sinuses, genitals, fat and connective tissues, skin. So in the liver and kidney stones are deposited; in the lungs, maxillary sinuses and. genital organs - mucus; in connective tissue - callous tendons, stiffness of the joints; in the skin - all kinds of substances that lead to diseases such as acne, acne, oily or dry seborrhea, psoriasis, eczema, etc.
When choosing a system approach, preference was given to the anatomical order and structure of those organs through which the venous blood passes from of the entire intestinal tract.

This order begins:

  • with the capillary and the blood and lymph vessels located in the layer of fatty tissue of the large intestine;
  • after them go the capillaries of the portal vein, the portal vein itself, its capillaries in the venous system of the liver and the venous system of the liver;
  • then the right ventricle of the heart (where the venous blood, which is poor in oxygen, ultimately enters and from which it is thrown into the two branches of the pulmonary artery and through them goes to the lungs;
  • and this order ends with the capillaries of the lungs (where eventually the venous blood enters to give carbon dioxide and get oxygen instead).

Since it is the blood that carries oxygen from the respiratory organs to the tissues and carbon dioxide from the tissues to the respiratory organs, it delivers nutrients from the digestive organs to the tissues, and the exchange products to the excretory organs. As a mechanical engineer, I made the decision to present this map - a diagram in exact correspondence with the venous blood flow through the entire intestinal tract, as well as taking into account its osmotic pressure, the nature of the relative constancy of its chemistry, composition, etc. of things. At the same time, guided by such basic concepts as KCHR (acid-base balance), pH (hydrogen index), the organism's environment, the ratio (1:20) of biogenic macronutrients such as sodium (Na) and its potassium antagonist (K), and anabolic and catabolic 

anabolic and catabolic processes.

In the process of vital activity in the body, continuous restructuring takes place: some cells die, others replace them. In an adult, one-third of skin epithelium cells and half of all epithelial cells in the digestive tract die, about 25 g of blood, etc., die within 24 hours.

In the process of growth, renewal of body cells is possible only when O2 and nutrients are continuously supplied, which are the building material from which the organism is built. But for the construction of new cells of the body, their continuous renewal, as well as for the performance by a person of some kind of work, energy is needed. This energy the human body receives during the decay and oxidation in the metabolic processes (metabolism). And the metabolic processes (anabolism and catabolism) are finely coordinated with each other and proceed in a certain sequence.

Anabolism is understood as the aggregate of synthesis reactions. Under catabolism - a set of reactions of decay. It must be taken into account that both these processes are continuously connected. Catabolic processes provide anabolism with energy and starting materials, and anabolic processes - the synthesis of structures, the formation of new tissues in connection with the processes of body growth, the synthesis of hormones and enzymes necessary for life.

During the individual development, the most significant changes are experienced by the anabolic phase of metabolism and, to a lesser extent, by the catabolic phase.

In terms of its functional significance, the following types of synthesis are distinguished in the anabolic phase of metabolism:

1) synthesis of growth - an increase in the protein mass of organs in the period of enhanced cell division (proliferation), growth of the organism as a whole.

2) the synthesis of functional and protective - the formation of proteins for other organs and systems, for example, the synthesis of plasma proteins in the liver, the formation of enzymes of the digestive tract and hormones.

3) synthesis of regeneration (recovery) - synthesis of proteins in regenerating tissues after injuries or malnutrition.

4) the synthesis of self-renewal, associated with the stabilization of the organism, is the constant replenishment of the components of the internal environment that are destroyed during dissimilation.

All these forms are weakened, although unevenly, during individual development. In this case, especially significant changes are observed in the synthesis of growth. The fastest growth rate is the intrauterine period. For example, the weight of a human embryo in comparison with the weight of a zygote (fertilized egg) is increased by 1 billion. 20 million times, and for 20 years of progressive growth of a person increases no more than 20 times.

After the birth of a person, during a lifetime there is a further fall in the level of anabolism.


Blood is a liquid tissue that circulates in our circulatory system. It consists of plasma and such shaped elements as erythrocytes, leukocytes, platelets, etc., the red color of the blood is attached to the pigment hemoglobin, which is contained in the red blood cells. Our blood is characterized by the relative constancy of chemistry, composition, osmotic pressure and active reaction (pH).
Carries oxygen from the respiratory organs to the tissues and carbon dioxide from the tissues to the respiratory organs, delivers nutrients from the digestive organs to the tissues, and metabolic products to the organs of excretion, participates in the regulation of water-salt metabolism and acid-base balance (balance) in the body, in maintaining a constant body temperature. Due to the presence of antibodies, antitoxins and lysines in the blood, as well as the ability of leukocytes (phagocytes) to absorb microorganisms and foreign bodies, blood also performs a protective function. In an adult, about 5.2 liters of blood (in men) and 3.5 liters (in women). In 1 mm3 of our blood contains 4 to 5 million erythrocytes, their life span is about 4 - months, 6 - 8 thousand leukocytes, their life span is 2 - 4 days and 200 - 400 thousand platelets. Hemoglobin in the blood - about 13 - 16 g in 100 ml.