Arkansas Esthetician Practice Exam

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What are tubular, elastic, thick-walled branching vessels that carry oxygenated blood from the heart through the body?

Veins
Erythrocytes
Arteries
Leucocytes

The correct answer is: Arteries

Arteries are tubular, elastic, thick-walled branching vessels that carry oxygenated blood from the heart through the body. They are different from veins (A) because veins carry deoxygenated blood back to the heart. Erythrocytes (B) and leucocytes (D) are not vessels, but rather types of blood cells. Erythrocytes are red blood cells responsible for carrying oxygen, while leucocytes are white blood cells responsible for immune defense. Therefore, it is incorrect to say that these cells carry oxygenated blood from the heart through the body.