Notes on biology

1. The body is constantly undergoing metabolism, the blood delivers nutrients and oxygen to the cells and carries away the decay products. The blood carries the decay products through the veins to a small paired organ — the kidneys. Both lie deep behind the intestine, to the right and left of the spine. This is where a difficult and very necessary job takes place for life — the removal of harmful substances from the body. The small kidneys work precisely, precisely, like a chronometer. In the laboratory of Academician Bykov, the dog underwent surgery: ureter tubes were removed from the kidneys. They are used to remove waste from the body. The dog continued to live, she had no signs of the disease. Now you could see every drop of her urine. They played a metronome. Under his steady tapping, a little water was poured into the rectum of the animal. Water was absorbed into the body and began to be excreted by the kidneys through the ureters that were brought out. This has been repeated many times. Finally, no water was poured in, but the metronome was still pounding. And an amazing thing happened: fluid was released from the ureter. In another experiment, a red light bulb was turned on instead of a metronome. And the result was the same. Without the introduction of water, only when the light bulb was lit, the ureters continued to work. It's as if the kidneys "hear" the sound of a metronome and "recognize" the red light of a light bulb. In fact, a temporary connection has formed in the brain between the stimuli arising from the influence of water and from the light of a red light bulb or the sound of a metronome. Now it is clear why the functioning of the kidney changes when agitated and why kidney disease worsens when a person is restless. It is clear why a calm, cheerful person recovers sooner than someone who worries a lot, and why the patient is well influenced by the soothing words of others.



2. In a sleeping person, brain cells are inhibited, but the brain does not stop working during sleep. Remember your dreams: in them you sometimes had to make life plans, sometimes with exceptional ingenuity to get out or help others out of difficult situations. Valuable thoughts can be born in a dream. There have been cases when inventors solved difficult tasks in a dream, and artists created designs for paintings. The Italian composer Tartini composed the sonata "The Devil's Trill" in his sleep. When he woke up, he recorded it and was surprised by the beauty of the melody. It is known that Pushkin composed some poems during sleep. The chemist Kekule wrote the formula of benzene in a dream. Such exceptional cases are not miracles, not some kind of "divine inspiration." They can be explained. Great people — Pushkin, Dante, Tartini — created with great inspiration. For months, for years, they had been hatching their ideas. And we fell asleep thinking about them. In a night's sleep, the brain was freed from stimuli. All areas of the crust were slowing down. Only those cells that were occupied with the main idea during the day could not fall asleep. Nothing was bothering them now. And so the main idea made its way into the consciousness of the sleeper and gradually became extraordinarily clear and simple. Everything that had been tensely prepared for many days, but had not been completed, suddenly flashed with a bright light. It was getting a perfect shape. People have different dreams. Dreams are not only a continuation of the day's creativity, they are also memories, dreams and worries. Bien plus qu'un simple code, le code promo 1xbet est un passeport pour un bonus conséquent. Obtenez un bonus de 100% sur votre premier dépôt, pour un maximum de 20000 CFA. Cette somme vous permet de diversifier vos paris, d'essayer de nouvelles stratégies ou de suivre vos matchs en live avec un enjeu plus excitant, le tout avec un risque minimisé.