Heart Basics
What is the main job of the heart?
Answer: To pump blood.
What does blood carry around the body?
Answer: Oxygen and nutrients.
Which vessels carry blood away from the heart?
Answer: Arteries.
Which activity strengthens your heart?
Answer: Running or jumping rope.
Which system works closely with the cardiovascular system to deliver oxygen?
Answer: The respiratory system.
Your heart is about the size of a…
Answer: Your fist.
What is the red liquid that travels through your body called?
Answer: Blood.
Which vessels carry blood back to the heart?
Answer: Veins.
What should you do if your heart rate feels too fast while exercising?
Answer: Stop and breathe slowly.
Why does your heart beat faster during exercise?
Answer: Your body needs more oxygen.
What happens to your heart rate when you exercise?
Answer: It beats faster.
Why is oxygen important for your cells?
Answer: Cells use oxygen to make energy
What does circulation mean?
Answer: Blood moving through the body
Which nutrients help keep your heart healthy?
Answer: Fiber, protein, and Vitamin C (all of the above).
What should you do to keep your cardiovascular system strong long-term?
Answer: Exercise regularly.
How many chambers does the human heart have?
Answer: 4 chambers.
What does your pulse measure?
Answer: The heartbeat you can feel in an artery.
Which blood vessels have thick, strong walls, can be fatal if injured?
Answer: Arteries.
How does sleep help your cardiovascular system?
Answer: It rests the heart and keeps the body healthy
What do the heart and blood vessels together form?
Answer: The cardiovascular system.
Your hearts pumps _____ gallons of blood daily.
2,000 !!
Yellow liquid with in the blood is called ?
Answer: Plasma