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This article contains a list of organs in the human body. It is widely believed that there are 79 organs (this number goes up if you count each bone and muscle as an organ on their own, which is becoming a more common practice [1] [2]); however, there is no universal standard definition of what constitutes an organ, and some tissue groups' status as one is debated. [3]
An organ system is a biological system consisting of a group of organs that work together to perform one or more functions. [1] Each organ has a specialized role in an organism body, and is made up of distinct tissues .
The English word "organ" dates back to the 12th century and refers to any musical instrument. By the late 14th century, the musical term's meaning had narrowed to refer specifically to the keyboard-based instrument. At the same time, a second meaning arose, in reference to a "body part adapted to a certain function". [15]
Viscus can also be used to mean "organ". [57] For example, the stomach is a viscus within the abdominal cavity, and visceral pain refers to pain originating from internal organs. Aboral (opposite to oral) is used to denote a location along the gastrointestinal tract that is relatively closer to the anus. [58]
The cranial region includes the upper part of the head while the; facial region includes the lower half of the head beginning below the ears.; The forehead is referred to as the frontal region.
Organ, a division within an organization, for example, organs of United Nations; Organs of state, branches of power within a government; Organ, an old word for a mental faculty, particularly in the context of phrenology; Organ, a slang word for a penis; Organ (surname), a list of people with the surname
Sexual slang is a set of linguistic terms and phrases used to refer to sexual organs, processes, and activities; [1] they are generally considered colloquial rather than formal or medical, and some may be seen as impolite or improper. [2] Related to sexual slang is slang related to defecation and flatulence (toilet humor, scatolinguistics).
The term "organism" (from the Ancient Greek ὀργανισμός, derived from órganon, meaning instrument, implement, tool, organ of sense or apprehension) [2] [3] first appeared in the English language in the 1660s with the now-obsolete meaning of an organic structure or organization. [3] It is related to the verb "organize". [3]