English term brain death, cerebral death Definition The term brain death is understood to mean the non-existent and irreversible activity of vital brain areas (cerebrum, cerebellum, brain stem) during cardiovascular function still maintained by artificial respiration (Scientific Advisory Council of the German Medical Association, 1997). Brain death in the scientific-medical sense means the death of … Brain death
Criticism of the definition of brain death Particularly after the Erlangen case of Marion P., criticism of the definition of brain death became loud. Marion P. was admitted to Erlangen University Hospital on October 5, 1992 with severe craniocerebral injuries. Three days later the patient was diagnosed with brain death. Since the patient was pregnant, … Criticism of the definition of brain death | Brain death
Electroencephalography, or EEG for short, is used to measure and display potential fluctuations of nerve cells in the cerebrum. The basis for this is the change in electrolyte concentration (electrolytes = salts) of the intra- and extracellular space during excitation of the cell. It is important that the EEG does not record individual action potentials, … Electroencephalography
Evaluation Depending on the problem, different parameters are taken into account when evaluating the electroencephalogram. To characterize the EEG waves, first their frequency is determined. During periods of high stress on the neurons of the cerebrum, such as when solving a difficult mental exercise, the EEG can register waves with a frequency of 30-80 Hz … Evaluation | Electroencephalography
Electroencephalography and sleep It was only with the help of electroencephalography that researchers succeeded in defining the sleep stages known today. Above all, the different wave frequencies and other peculiarities such as sleep spindles or k-complexes help to differentiate. First, a normal sleep cycle is described. If you close your eyes, alpha waves with low … Electroencephalography and sleep | Electroencephalography
Clinical use Some pathological changes of the brain can be visualized by means of the EEG. For example, circulatory, attention and sleep disorders can be diagnosed with this method. A special example is the neurodegenerative disease multiple sclerosis. In the course of the disease, the insulating layer around the nerve cells breaks down, limiting their … Clinical use | Electroencephalography
Dying process in the human body According to palliative medical practitioners, the dying process is in many cases perceived as peaceful by those affected. As a rule, the last days of life are spent in a state of introspection and the body slowly begins to shut down organ functions. These signs can often look very … What happens when you die?
Sign of death Death signs are certain characteristic changes of the body that occur after death. A distinction is made between certain and uncertain signs of death. The sure signs of death include lividity, rigor mortis and corpse rot. At least one of these signs must be present for a person to be declared dead. … Sign of death | What happens when you die?
What happens to the blood when you die? As the blood circulation in the body stops due to heart failure, the blood slowly begins to clot and collect at the lowest points of the body due to gravity. Corpse spots are formed. In patients lying on their backs, the back and back of the legs … What happens to the blood when you die? | What happens when you die?