Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. ... The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.
WARNING There’s people on this app that are answering your questions with links do not press the link they are trying to make a virus go onto your device you do not want that so just ignore it
The patient's cause of their death would have been stroke, loss of blood, or heart fail and the health workers, the patient, and the relatives would now be stressed and maybe depressed for the relatives.