Question

multiple choice question
the two basic types of blood vessels are _____, which carry blood away from the heart, and _____, which carry blood toward the heart.
o veins; capillaries
o veins; arteries
o arteries; veins

Explanation:

Arteries carry oxygen - rich blood away from the heart (except for the pulmonary artery which carries de - oxygenated blood to the lungs). Veins carry de - oxygenated blood (except for the pulmonary veins which carry oxygenated blood from the lungs to the heart) towards the heart. Capillaries are the smallest blood vessels where exchange of substances between blood and tissues occurs.

Answer:

C. arteries; veins