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Physiological causes include fainting, sleep disorders, and heart arrhythmias. [ 2 ] [ 3 ] Psychological causes are known as psychogenic non-epileptic seizures . [ 3 ] Diagnosis may be based on the history of the event and physical examination with support from heart testing and an EEG .
Necrosis was long seen as a non-physiological process that occurs as a result of infection or injury, [4] but in the 2000s, a form of programmed necrosis, called necroptosis, [5] was recognized as an alternative form of programmed cell death. It is hypothesized that necroptosis can serve as a cell-death backup to apoptosis when the apoptosis ...
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.
Physiology (/ ˌ f ɪ z i ˈ ɒ l ə dʒ i /; from Ancient Greek φύσις (phúsis) 'nature, origin' and -λογία () 'study of') [1] is the scientific study of functions and mechanisms in a living system.
Pathology is the medical discipline that describes conditions typically observed during a disease state, whereas physiology is the biological discipline that describes processes or mechanisms operating within an organism. Pathology describes the abnormal or undesired condition (symptoms of a disease), whereas pathophysiology seeks to explain ...
Psychological pain, mental pain, or emotional pain is an unpleasant feeling (a suffering) of a psychological, non-physical origin. A pioneer in the field of suicidology, Edwin S. Shneidman, described it as "how much you hurt as a human being. It is mental suffering; mental torment."
Image credits: viralsumo1 #6. 1. Gentle Admittedly men are quite strong and can sometimes come off as a bull in a China shop. When a man is considerate and gentle, it genuinely makes my heart melt.
The mechanism of distinguishing between harmless and harmful bacteria on the molecular as well as on physiological levels is not completely understood. Nonpathogenic organisms are those that do not cause disease , harm or death to another organism.