anatomy. any of the smallest branches of an artery, terminating in capillaries.
(anatomy) any of the small subdivisions of an artery that form thin-walled vessels ending in capillaries

“small artery,” by 1808, from modern latin arteriola, diminutive of arteria (see artery).

arteriole ar·te·ri·ole (är-tǐr’ē-ōl’)
a minute artery, especially a terminal artery continuous with the capillary network.
ar·te’ri·o’lar (-ō’lər, -ə-lər) adj.
any of the smaller branches of an artery, especially one that connects with a capillary.

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  • Arteriolitis

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  • Arteriolonecrosis

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