Hadith 1

rong attraction, and for the part to move as a whole because the tendon is connected from it to its lower end. And the tendons of one muscle may be multiple if it is large, and several muscles may cooperate to move one member, and the muscle may not have a tendon because it is very small. And every organ that moves voluntarily has a muscle by which it moves, if it was moving in an opposing direction, it would have muscles in opposing positions, each one of them pulling it to its side when that movement is taking place, and the antagonist stops it from doing so. And if the two opposites work at the same time, the member is straightened and stretched, and the palm stands. For example, if the muscle placed in the sole of the forearm extends it, and the muscle placed in the back of the forearm is stretched, and the muscle placed in the back is stretched back, and all of its extent is equal and stands between the two. Moreover, the principle of sensation and movement in all the organs may be one nerve or it may be two, and the principle of the nerve for sense and movement is due to its bearing of the touching force, and the moving force is from the side of the animal soul that emanates into it from the brain, because of the metastasis of its carrier, which is the soul, except for what lack of sense is more beneficial to him, such as the liver, spleen, kidney, lung, and bone. And this force comprehends the first qualities of heat, cold, humidity, and dryness, and it also perceives lightness, heaviness, touch, roughness, hardness, softness, fragility, and viscosity, all by contact. Likewise, the moving force is transmitted into all the organs by means of the soul that is transmitted in the muscles. Then, when the lower body and beyond the brain need to obtain sensation and movement, and the nerves descending to it from the brain were far from the path, not close or close, and also if all the nerves sprouted from the brain does not need the head to be much larger than it is, and for the body to bear it. And for that, Allah-azwj, Mighty is His-azwj Name, Made a hole to be in the lower cranium, and another from it, something from the brain, and it is the marrow, and He-azwj Fortified it due to it’s nobility and it’s honour, with the neck, and the solid just as He-azwj has Fortified the brain with the cranium, and Flowed it in the length of the body, and it is fortified, safe. And a nerve sprouts from it when approaching and aligning with an organ a nerve that comes out from a hole in the beads of the neck and the crucifixion, and it connects with those organs that the nerve comes to from that place, giving them sensation and movement by the strength of their principle in which they are. If a great accident occurs on the brain, the whole body loses sense and movement, and if it occurs on the marrow, the organs that the nerve comes from that place and what is below it, will lose sensation. It is only because the brain is like the eye and the source for that, and the marrow is like the great river flowing from it, and the nerves are like streams, and the first principles of the nerves emerging from the brain and the marrow are soft and similar to them, and then they become hard when they are separated from them until it becomes a complete nerve of the type. Then know that all the muscles are enclosed by a fine membrane, and likewise all the viscera are enclosed by a thin membrane, and the membrane is a nice, thin body woven from the nerve and ligament to benefit the organ that is its membrane and surrounding it, which is not perceptible to the occasional sense and feeling. The organs are in their shapes and positions, and it protects them from dissipation and dispersal, and connects them by means of a nerve and a ligament that splinters into its fibres with another organ. And all things wrapped in the membrane are inside the ribs, so their membrane grows from one of the