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The cystic artery supplies oxygenated blood to the gallbladder and cystic duct. ==Most common arrangement== In the classic arrangement, occurring with a frequency of approximately 70%, a singular cystic artery originates from the geniculate flexure of the right hepatic artery in the upper portion of the hepatobiliary triangle. A site of origin from a more proximal or distal portion of the right hepatic artery is also considered relatively normal. After separating from the right hepatic artery, the cystic artery travels superiorly to the cystic duct and produces 2 to 4 minor branches, known as ''Calot’s arteries'', that supply part of the cystic duct and cervix of the gallbladder before dividing into the major superficial and deep branches at the superior aspect of the gallbladder neck: * The ''superficial branch'' (or ''anterior branch'') passes subserously over the left aspect of the gallbladder. * The ''deep branch'' (or ''posterior branch'') runs between the gallbladder and gallbladder fossa, terminating at the peritoneum attached to the liver surface. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cystic artery」の詳細全文を読む スポンサード リンク
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