QUESTIONS AND ANSWERS
1. What are the four chambers of the heart?
– Answer: The heart has four chambers:
– Upper chambers: Right atrium and left atrium.
– Lower chambers: Right ventricle and left ventricle.
2. What separates the right and left sides of the heart?
– Answer: A wall called the septum separates the two sides.
3. How does blood flow through the right side of the heart?
– Answer:
1. Right atrium receives low-oxygen blood from the body.
2. Blood passes to the right ventricle, which pumps it to the lungs to pick up oxygen and remove carbon dioxide.
4. How does blood flow through the left side of the heart?
– Answer:
1. Left atrium receives oxygen-rich blood from the lungs.
2. Blood moves to the left ventricle, which pumps it out to the entire body to deliver oxygen and nutrients.
5. What is the difference between an artery and a vein?
– Answer:
– Artery (A): Carries blood away from the heart (usually oxygen-rich, except for the pulmonary artery).
– Vein (V): Carries blood back to the heart (usually low in oxygen, except for the pulmonary vein).
6. Why does the heart pump blood to the lungs?
– Answer: To pick up oxygen from the lungs and remove carbon dioxide (waste gas).
7. How can you find your pulse?
– Answer: Place your first finger and thumb on the palm side of your wrist to feel the heartbeat.
8. What is the main job of the heart?
– Answer: To pump blood—delivering oxygen to the body and removing waste like carbon dioxide.
9. Which part of the heart pumps blood to the body?
– Answer: The left ventricle (strongest chamber) pumps blood out to the body.
10. Where does the right atrium get its blood from?
– Answer: From the body (low-oxygen blood returns through veins).