It is the medical operation that is done on a patient, when a major incision is necessary in the body, almost always to intervene in internal organs. As formerly a cure was prescribed after the simple observation of the patient, the fact of touching it, and more when it is in its viscera, gave rise to this name taken from the Greek voices 967; 949; 953; 961; ( kheir "hand" ) 949; 961; 947; 959; 957; ( ergon "work" ) ; Although it is often used figuratively, for the use of a radicalized and forceful resource or that produces a division.
