13. What are arterial vessels,
arteries and arterioles?

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Arterial vessels are blood vessel
that blood from the to the
tissues. and arterioles are
vessels. Arterioles are
arteries that end capillaries.

Not all however contain arterial
(highly oxygenated blood).
pulmonary artery and ramifications,
arteries that blood from the
heart ventricle to lungs, contain
venous .