Quiz

• What is the primary function of the circulatory system?

  To transport oxygenated blood
• How does the left ventricle function in the circulatory system?

  It pumps oxygenated blood to the body
• What happens to blood in the lungs?

  It gets oxygenated
• What does the right ventricle do?

  Pumps deoxygenated blood to the lungs
• What is the role of the heart in the circulatory system?

  It pumps blood throughout the body
• What is the process called when blood moves from the lungs to the heart?

  It is called pulmonary circulation
• How does blood supply to the body occur?

  Through arteries from the heart
• What is diffusion in the context of blood circulation?

  Movement of gases across membranes
• What is the significance of the alveoli in the respiratory system?

  They facilitate gas exchange
• How do the circulatory and respiratory systems work together?

  They exchange gases to supply oxygen
• What are the main components of the circulatory system?

  • Heart
  • Blood vessels (arteries, veins, capillaries)
  • Blood
• What are the steps of blood flow through the heart?

  1. Deoxygenated blood enters the right atrium
  2. Blood flows to the right ventricle
  3. Blood is pumped to the lungs for oxygenation
  4. Oxygenated blood returns to the left atrium
  5. Blood flows to the left ventricle
  6. Blood is pumped to the body
• What is the process of gas exchange in the alveoli?

  • Oxygen diffuses into the blood
  • Carbon dioxide diffuses out of the blood
• What are the differences between arteries, veins, and capillaries?

  • Arteries: carry blood away from the heart
  • Veins: carry blood to the heart
  • Capillaries: exchange materials between blood and tissues
• What is the role of hemoglobin in the blood?

  • Binds to oxygen for transport
  • Carries carbon dioxide back to the lungs
• What is the significance of the systemic circulation?

  • Delivers oxygenated blood to body tissues
  • Returns deoxygenated blood to the heart
• What is the role of the pulmonary circulation?

  • Transports deoxygenated blood to the lungs
  • Returns oxygenated blood to the heart
• What is the function of valves in the heart?

  • Prevent backflow of blood
  • Ensure unidirectional blood flow