Hadith 1

membranes of the chest and abdomen, and the fleshy organs are either fibrous like muscle meat, or there is no fibre like the liver, and there is nothing of the movements except by fibre, while voluntary action is because of muscle fibre. As for the voluntary, it is due to muscle fibres, and as for the natural ones, such as the movement of the uterus and veins, and the compound, such as the movement of the groin, it a specific fibre in a form of placing length, width, and turbine, and for pulling the elongated fibre, and for repelling the fibre that goes crosswise by the squeezing, and for grasping the retracting fibre. As for the veins, these are of two types. One of them is the pulsator, and its trigger is the heart. It is called the arteries. It has two movements, systolic and diastolic, and it removes smoke from the heart with its systolic movement and attracts with its diastolic movement a good, clear breeze with which the heart relaxes and from which it derives the instinctive heat. Through this movement the spirit, animal power, and instinctive heat spread throughout the entire body, and all of them were created with two flanks, as a precaution in the tightness of their bodies, lest they split due to the force of their movement, including what is in them, and lest what is in them disintegrate except for one of them, called the venous artery, for it has one peritoneum to be softer and more obedient. For relaxation and constriction, the need for smoothness is greater than for thrust, because it is also an outlet for the breeze. Like that, there is an outlet for the lung’s nourishment, for its nourishment is from the heart, as it sinks into the lung and becomes a branch, and the flesh of the lung is soft and gentle, not afraid of clashing with it when it pulses, and it needs to filter food into it quickly and easily, encountering the force of the instinctive heat and its confrontation with the movement of the soul. Wisdom necessitated strengthening the outlet of the soul and the instinctive heat with this lining and securing it with it. The second type is the static veins and their source is the liver, and they are called veins, and their task is either to attract food to the liver, or to deliver food from the liver to the organs. All of them have one peritoneum except for one, which is called the arterial vein, because it has two solid membranes because it penetrates into the right cavity of the heart. It brings the nourishment of the lung to the heart, and the lung flesh is a soft and light meat that is only suitable for it with thin, gentle blood. And from the arteries are what accompany the veins so that the veins are connected to the membranes covered with them, so that the organs between them are drawn in between them, so each one of them draws from the other. And whenever they converge on the solid inside, the arteriovenous straddles, the lowest breathe most honourable ones, and whatever they join in the visible organs, the artery sinks under the vein so that it is more concealed and more concealed for it, and the vein will be for it like paradise. As for the cartilage, it is softer than the bone, so it bends and is stiffer than the rest of the organs, and its benefit is that it improves the connection of the bones with the soft organs, so that the hard and the soft are not superimposed without an average. Thus, the soft will be harmed by the solid, especially during blows and pressure, and it improves the juxtaposition of the abrasive joints, so it is not compromised by its rigidity and is based on with it, it strengthens some of the muscles that extend to a non-boneless organ, and to depend on it what lacks dependence on something strong that is not very solid. These are the similar parts, the parts on which the mechanical organs are installed, for their Giver, of Praise as He-azwj Deserves it, and all of them are formed from semen, except for m