Hatha Yoga Chapter 7
The Organs of Respiration consist of the lungs and the air passages leading to them. The lungs are two in quantity, and occupy the pleural chamber of the thorax, one on each side of the median line, being separated from each other by the heart, the higher blood-vessels and the larger air tubes. Each lung is free in all directions, besides at the root, which consists mainly of the bronchi, arteries and veins connecting the lungs with the trachea and coronary heart. The lungs are spongy and porous, and their tissues are very elastic. They're coated with a delicately constructed however strong sac, recognized because the pleural sac, one wall of which carefully adheres to the lung, and BloodVitals wearable the opposite to the internal wall of the chest, and which secretes a fluid which allows the interior surfaces of the walls to glide easily upon one another in the act of respiration. The Air Passages include the inside of the nose, pharynx, larynx, windpipe or trachea, and the bronchial tubes.
When we breathe, we draw within the air through the nose, by which it is warmed by contact with the mucous membrane, which is richly supplied with blood, and after it has handed by way of the pharynx and larynx it passes into the trachea or BloodVitals SPO2 windpipe, which subdivides into numerous tubes referred to as the bronchial tubes (bronchia), which, in turn, subdivide into and terminate in minute subdivisions in all of the small air areas in the lungs, of which the lung's include thousands and thousands. A writer has said that if the air cells of the lungs were unfold out over an unbroken floor, they'd cover an area of fourteen thousand square toes. The air is drawn into the lungs by the motion of the diaphragm, an awesome, robust, flat, sheet-like muscle, stretched throughout the chest, separating the chest-box from the abdomen. The diaphragm's action is nearly as automatic as that of the heart, although it could also be reworked right into a semi-voluntary muscle by an effort of the will.
When it expands, it increases the size of the chest and lungs, and the air rushes into the vacuum thus created. When it relaxes the chest and lungs contract and the air is expelled from the lungs. Now, before considering what occurs to the air within the lungs, allow us to look a bit of into the matter of the circulation of the blood. The blood, as you know, is driven by the heart, by the arteries, into the capillaries, thus reaching every part of the body, which it vitalizes, nourishes and strengthens. It then returns by means of the capillaries by one other route, the veins, to the center, from whence it's drawn to the lungs. The blood starts on its arterial journey, BloodVitals wearable brilliant crimson and wealthy, laden with life-giving qualities and properties. It returns by the venous route, poor, blue and dull, being laden down with the waste matter of the system. It goes out like a recent stream from the mountains; it returns as a stream of sewer water.
This foul stream goes to the fitting auricle of the guts. When this auricle turns into crammed, it contracts and forces the stream of blood via an opening in the appropriate ventricle of the guts, which in turn sends it on to the lungs, where it is distributed by millions of hair-like blood vessels to the air cells of the lungs, of which we've spoken. Now, allow us to take up the story of the lungs at this point. The foul stream of blood is now distributed among the tens of millions of tiny air cells in the lungs. A breath of air is inhaled and the oxygen of the air comes in contact with the impure blood by the skinny walls of the hair-like blood vessels of the lungs, which partitions are thick enough to hold the blood, but skinny sufficient to admit the oxygen to penetrate them. When the oxygen comes involved with the blood, BloodVitals review a form of combustion takes place, home SPO2 device and the blood takes up oxygen and releases carbonic acid fuel generated from the waste products and poisonous matter which has been gathered up by the blood from all parts of the system.
The blood thus purified and oxygenated is carried again to the heart, BloodVitals SPO2 device again rich, purple and vivid, BloodVitals SPO2 device and laden with life-giving properties and qualities. Upon reaching the left auricle of the center, it is forced into the left ventricle, from whence it is again compelled out by way of the arteries on its mission of life to all components of the system. It's estimated that in a single day of twenty-4 hours, 35,000 pints of blood traverse the capillaries of the lungs, the blood corpuscles passing in single file and being exposed to the oxygen of the air on each of their surfaces. When one considers the minute details of the method alluded to, he is lost in surprise and admiration at Nature's infinite care and intelligence. It will likely be seen that unless contemporary air in ample portions reaches the lungs, the foul stream of venous blood can't be purified, and consequently not only is the physique thus robbed of nourishment, but the waste products which should have been destroyed are returned to the circulation and poison the system, and death ensues.