The Emotional Pose Of An Animal Leads A

The emotional pose of an animal leads a body in a ready state to immediate movement. Simultaneously sends signals to vegetative nervous system - to that its department which "knows" function of an internal. Such signal in fractions of a second arrives in adrenal glands, and they throw out the hormone - adrenaline. It is easy for noticing from outside: adrenaline causes reduction of special muscles of a skin, and the wool at an animal becomes on end. Adrenaline emission in blood promotes expansion of vessels of heart, a brain and lungs and, on the contrary, narrowing of vessels of a skin and an internal, especially digestive owing to what there is a redistribution of volume of the blood, favourable to struggle. The action of the heart amplifies, arterial pressure raises. All this activity requires provision of energy, and adrenaline will mobilise both energy sources: from fatty depots - fat acids and from a liver - glucose. A food of a muscular fabric and a brain thereby amplifies. All is together taken - narrowing of vessels of a skin, a wool reducing , increase in blood of level of fat acids and glucose, the easy shiver - promotes body rise in temperature that creates optimum conditions for course of chemical reactions.