Arteriole

View the Heart Disease Slideshow

Medical Definition of Arteriole

Arteriole: A small branch of an artery that leads to a capillary. The oxygenated hemoglobin (oxyhemoglobin) makes the blood in arterioles (and arteries) look bright red.


Quick GuideHeart Disease: Causes of a Heart Attack

Heart Disease: Causes of a Heart Attack

Subscribe to MedicineNet's Heart Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 5/13/2016

Health Solutions From Our Sponsors