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“CHEMISTRY OF LOVE” - ABOUT WHAT SUBSTANCES GOING TO SPEECH?


Mammals also produce pheromones and react to them. In the book of Mary Roach “Sex for science. Science for sex ”is a fascinating description of the artificial insemination of pigs on a farm in Denmark. According to the recommendations of the local national committee for the production of pork, animals need to be brought before fertilization - studies have shown that in this case they bring 6% more piglets. Therefore, to prepare the female for insemination, the zoo technician imitates the courtship of a boar — for example, sticks a fist or knee between the female's hind legs and rhythmically stimulates her vulva. But, in addition to this, pigs before fertilization are also treated with male pheromones. To do this, you can either run an excited boar to walk between the rows of cages so that he slapped every female, or simply buy a specially designed spray with the smell of boar sweat and inject it into each female in a piglet.
The vomeronasal organ is responsible for the perception of pheromones in animals (the alternative name is the Jacobson organ). This is a separate part of the olfactory epithelium, the signals from which are processed in the brain not in the same way as ordinary smells: they do not enter the main, but an additional olfactory bulb, and from there the information is sent to the amygdala and the hypothalamus3. Already these anatomical features indicate the important role of the vomeronasal organ in shaping the behavior of animals. The amygdala is necessary for experiencing emotions (both positive and negative), and the hypothalamus is the central control center of the endocrine system, it collects information from the entire brain and makes decisions about which hormones to release and in what quantities.
In the serpent, Jacobson's organ is connected to the oral cavity. That is why their language is forked. It is used not only for touch, but also for transferring molecules to the inlets of the vomeronasal organ. This system is so sensitive that it can catch a tiny difference in the smell of a partner (or prey) on the right and left side of the tongue in order to determine the direction in which to move in order to catch up with the desired object4. But mammals also have a way to help the vomeronasal organ catch the smell: for this purpose they dramatically draw in air through their mouths, stretching their lips into something like a smile. So do horses, cows, cats and many other animals. This action is called flemen and has a deep meaning, helping to better feel the biologically significant odors. But people usually think that a horse just makes faces.
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“CHEMISTRY OF LOVE” - ABOUT WHAT SUBSTANCES GOING TO SPEECH?

  1. How to help a person who is going to divorce, do not feel guilty? This is a man who has been married for fifteen years and has two children, eight and fifteen years old.
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  2. Chemistry of acids and bases
    The concentration of hydrogen ions and pH In any aqueous solution, water molecules are reversibly dissociated into hydrogen ions and hydroxide ions: H2O ~ H + + OH '. The kinetics of this process can be described using the dissociation constant Kw: Kw = [H +] x [OhT] = I (G14. The water concentration in the denominator of this equation is omitted because it is not significant and is already included in the constant. Therefore,
  3. MORPHOLOGY, CHEMISTRY AND MEAT MEATING
    In the meat industry and in trade, it is common for meat to name all parts of an animal’s carcass after skinning, separation of the head, lower limbs, and internal organs. Consequently, morphologically, meat is a complex tissue complex, which consists of muscle tissue along with connective tissue formations, fat, bones, blood and lymph vessels,
  4. When to use gloves
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  5. When my husband and I quarrel, he goes out of the house.
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