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It is the time lapse between death and discovery. After death, decomposition occurs. Decomposition includes physical, chemical, and biological changes. [19] Below are some of the biochemical changes that happen during decomposition which can help estimate the time since death (keeping in mind that there is variation between species): [20]
Simplified control circuit of human thermoregulation. [8]The core temperature of a human is regulated and stabilized primarily by the hypothalamus, a region of the brain linking the endocrine system to the nervous system, [9] and more specifically by the anterior hypothalamic nucleus and the adjacent preoptic area regions of the hypothalamus.
Necrosis (from Ancient Greek νέκρωσις (nékrōsis) ' death ') is a form of cell injury which results in the premature death of cells in living tissue by autolysis. [1] The term "necrosis" came about in the mid-19th century and is commonly attributed to German pathologist Rudolf Virchow , who is often regarded as one of the founders of ...
Conversely, premature death can refer to a death that occurs before old age arrives, for example, human death before a person reaches the age of 75. [78] Animal and plant cells normally reproduce and function during the whole period of natural existence, but the aging process derives from the deterioration of cellular activity and the ruination ...
Overview of signal transduction pathways involved in apoptosis. Cell death is the event of a biological cell ceasing to carry out its functions. This may be the result of the natural process of old cells dying and being replaced by new ones, as in programmed cell death, or may result from factors such as diseases, localized injury, or the death of the organism of which the cells are part.
If death is not only a stoppage of the heart but a flatlining of brain waves, it's hard to explain how people who flatlined on the operating table can revive and describe to the doctors what they ...
How humans understand and approach the process dying differs across cultures. [5] In some cultures, death is the complete termination of life. [5] In other cultures, death can include altered states of being, like sleep or illness. [5]
Yet there are cases of patients regaining consciousness during CPR while still in full cardiac arrest. [26] In absence of cerebral function monitoring or frank return to consciousness, the neurological status of patients undergoing CPR is intrinsically uncertain. It is somewhere between the state of clinical death and a normal functioning state.