Learn About Arteries
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Blood flows through arteries at up to 30 cm per second.
An artery is a tube-like blood vessel that carries blood away from the heart.
Systemic arteries
Systemic arteries deliver oxygenated blood around the body.
An arteriole is a smaller branch off in an artery.
Arterioles branch into microscopic capillaries.
Blood flows through arteries at up to 30 cm per second.
The walls of arteries are muscular
Arteries run alongside most of the veins that return
blood to the heart.
The walls of arteries are muscular and can expand or
relax to control the blood flow.
Arteries have thicker, stronger walls than veins, and
the pressure of the blood in them is a lot higher.
Hypertension
Over-thickening of the artery walls may be one
cause of hypertension (high blood pressure).
In old age the artery walls can become very stiff.
This hardening of the arteries, called arteriosclerosis,
can cut blood flow to the brain.
Learn About The Human Body
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