AKN / Arteries

Learn about Arterioles

What are arterioles?
Arterioles are a type of small blood vessel that branches off from the an artery that carries blood away from the heart to tissues and organs. (1)

Arterioles are small arteries that link up to capillaries (1)

What do arterioles do?
Arterioles are connectors between the arteries and capillaries. (1)
Arterioles control blood pressure and blood flow throughout the body, using their muscles to change their diameter. (1)
Arterioles link to capillaries to exchange oxygen, nutrients, and waste. (1)
In your skin, some arterioles help keep you warmer when they constrict and keep blood closer to your body’s core. When arterioles in your skin dilate, they help cool you off by increasing blood flow to your skin and extremities. (1)

What contains arterioles?
lungs (1)
brain (1)

What do arterioles contain?
smooth muscle cells (1)
Arterioles have 3 layers: tunica intima, tunica media, tunica adventitia)

Where are arterioles located? 
Arterioles are located all throughout the body. (1)

Resources
1. https://my.clevelandclinic.org/health/body/23377-arterioles

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