Editing Coma (section)

==Etymology==
The term 'coma', from the Greek {{lang|grc|κῶμα}} ''koma'', meaning deep sleep, had already been used in the [[Hippocratic Corpus|Hippocratic corpus]] (''Epidemica'') and later by [[Galen]] (second century AD). Subsequently, it was hardly used in the known literature up to the middle of the 17th century. The term is found again in [[Thomas Willis]]' (1621–1675) influential ''De anima brutorum'' (1672), where [[lethargy]] (pathological sleep), 'coma' (heavy sleeping), ''carus'' (deprivation of the senses) and [[apoplexy]] (into which ''carus'' could turn and which he localized in the [[white matter]]) are mentioned. The term ''carus'' is also derived from Greek, where it can be found in the roots of several words meaning soporific or sleepy. It can still be found in the root of the term 'carotid'. [[Thomas Sydenham]] (1624–89) mentioned the term 'coma' in several cases of fever (Sydenham, 1685).<ref>{{cite encyclopedia|url=http://www.etymonline.com/index.php?term=coma&allowed_in_frame=0|title=''Coma'' Origin|dictionary=[[Online Etymology Dictionary]]|access-date=14 August 2015}}</ref><ref>{{cite journal |last1=Koehler |first1=P. J. |last2=Wijdicks |first2=E. F. M. |title=Historical study of coma: looking back through medical and neurological texts |journal=Brain |date=7 February 2008 |volume=131 |issue=3 |pages=877–889 |doi=10.1093/brain/awm332 |pmid=18208847 |doi-access=free }}</ref>