https://doi.org/10.1351/goldbook.10380
Connection creating continuity between two tubular body structures, e.g. blood vessels or loops of bowel.
Note: An anastomosis may be a surgical construction (as when the two cut ends are joined following resection of a loop of bowel), may result from trauma, or may occur as a natural anatomic feature, typically involving blood vessels (as in an arteriovenous anastomosis bypassing a capillary bed; see arteriovenous shunt).