The anatomical origin is a concept used when describing muscles, tendons, ligaments, nerves, and blood and lymph vessels. While it often has a slightly different meaning depending on which kind of origin is referred to, it is generally used to explain the relative location of the anatomical structure in question. It is not to be understood in a temporal/ontogenetical sense.
The origin of a muscle is the point at which it attaches to a bone (usually) or another muscle. The structure that the origin is attached to is not moved by the contraction of the muscle. The opposite end of the muscle is called the insertion. This definition means that there is a functional aspect to the definition of a muscle's origin and insertion. Both origin and insertion are important for understanding the physiological function of the muscle.
Tendons, ligaments, nerves, and blood and lymph vessels
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The origin of an artery is the (usually bigger) artery that the former artery branches off of.
Footnotes and references
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