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Dying and death

Regardless of the causes of death, the body before death, as a rule, is undergoing a number of States, called the terminal. These include predgornoe state, the agony and clinical death.
Death can occur very quickly and without pedagogichnogo and atonal periods when such damage as extensive traumatic brain injury, different origin dismemberment of the body, for example, rail or air injury, in some diseases, especially for painful changes of cardiovascular system (thrombosis of a coronary vessels, spontaneous rupture of the aneurysm of the aorta and heart, and so on).
At other kinds of death, regardless of the cause, until the onset of clinical death occurs so-called predgornoe a condition that is characterized by disorders of the Central nervous system in the form of a sharp inhibition of the patient or victim, low or undetectable blood pressure; externally - cyanosis, pallor or mottling of the skin. Predgornoe state (this may take quite a long time) goes into agony.
Atonal state is a deeper stage of dying and is the last phase of the struggle of the organism for the preservation of life. Increasing hypoxia leads to oppression activity of the cerebral cortex, resulting in gradually losing consciousness.
Physiological functions in this period are regulated by the tabloid centers. In the period of agony weakened heart and breathing functions, as a rule, develop pulmonary edema, violated reflexes and gradually fades out of the physiological activity of the whole organism. Atonal period may be short-term, but can last for many hours and even days.
When acute onset of death occur point bleeding of the skin, beneath mucous membranes, pleura is a plethora of internal organs, acute pulmonary emphysema, swelling of the gallbladder bed, blood in the bloodstream dark liquid. Cadaveric spot is well expressed, quickly formed. One of the hallmarks of a long agony is found in the cavities of the heart and large vessels yellowish-white bundles of blood. In the short-term agony convolution are dark red. At long atonal period loss strands of fibrin is slowed down and formed blood elements have time to settle down, resulting in the afterlife. convolution blood consist primarily of strands of fibrin, which has a yellowish-white color. In the short-term agony in the blood quickly fall strands of fibrin, they delayed the formed elements of the blood (especially red blood cells), and therefore formed convolution red. The process of formation of red blood bundles is in direct connection with the increase of the coagulation activity of blood and the formation of white and mixed bundles also depends on slow the blood flow.
Atonal period after the heart stops enters a state of clinical death, which is a kind of transition state between life and death. The period of clinical death is characterized by the deep depression of the Central nervous system affecting the medulla, a termination of circulation and respiration. However, in the absence of outer signs of life in the tissues of the body at a minimum, remain metabolic processes. This period with timely medical intervention may be reversible. The duration of clinical death is up to 8 min and is determined by the period of experience is the latest in a phylogenetic relationship of education of the Central nervous system and cerebral cortex.
After 8 minutes of clinical death at normal conditions enters biological death, which is characterized by the onset of irreversible changes first in the higher parts of the Central nervous system, and then in other body tissues.