Patient Care Technician (PCT) AAH Practice Exam

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Blood vessels that carry blood away from the heart are known as what?

Veins
Capillaries
Arteries
Venules

The correct answer is: Arteries

Blood vessels that carry blood away from the heart are called arteries. This is a fundamental aspect of the circulatory system. Arteries transport oxygen-rich blood from the heart to various tissues and organs throughout the body, playing a critical role in delivering oxygen and nutrients required for cellular functions. Veins, in contrast, carry blood back to the heart, usually transporting deoxygenated blood. Capillaries are the smallest blood vessels where the exchange of gases, nutrients, and waste occurs between blood and tissues. Venules are small veins that collect blood from capillaries and transport it to larger veins. Understanding these distinctions is essential for recognizing how blood circulation works and the roles each type of blood vessel plays in maintaining overall health.