One of the mysteries of the English language finally explained.
A small branch of an artery leading into capillaries.
- ‘These branches become smaller and are differentiated into three distinct regions: pulp arterioles, sheathed arterioles, and terminal capillaries.’
- ‘The bronchi and bronchioles did not show epithelial changes, and the pulmonary arteries and arterioles were normal in appearance.’
- ‘Considerable congestion of pulmonary arteries, arterioles, veins, venules, and alveolar capillaries accompanied by vascular engorgement was present in four cases.’
- ‘Lesions present in the peritubular capillaries, arterioles and renal tubules were recorded.’
- ‘Capillaries are formed as a complex system of branching blood vessels between arterioles and venules (microscopic veins) Those near the arteries are at a higher pressure than those near veins.’
Mid 19th century: from French artériole, diminutive of artère (see artery).
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