arteriole measurement arteriole diameter slaulede 2021-06-11T16:50:24Z CMO:0003724 PMID:27270176 clinical_measurement_ontology The length of a line which crosses a transverse view of an arteriole, passing through its center and ending on either side at the outer surface of the arteriole wall. An arteriole is the smallest division of the artery located between the muscular arteries and capillaries.