blood circulation
The heart pumps blood through vessels. This topic is part of Human Body within Science & Nature. This page currently draws on 4 supporting questions, with answers and bonus facts available below.
blood circulation trivia questions
Blood circulation is powered mainly by what organ?
Answer: Heart
Bonus fact: The heart pumps blood through vessels.
Arteries generally carry blood in what direction?
Answer: Away from the heart
Bonus fact: Veins generally return blood toward the heart.
Which tiny vessels allow exchange between blood and tissues?
Answer: Capillaries
Bonus fact: Thin capillary walls permit diffusion.
What are the three main types of blood vessels?
Answer: Arteries, veins, and capillaries
Bonus fact: These vessels form the blood circulation network.