cardiovascular

• What is the cardiovascular system?

  A closed network of vessels circulating blood
• What are the components of the cardiovascular system?

  1. Heart: Pumps blood through vessels
  2. Blood vessels: Includes arteries, veins, capillaries
  3. Blood: Carries oxygen, nutrients, and waste
• Why do arteries have thicker, more muscular walls compared to veins?

  To withstand the higher pressure of blood pumped from the heart
• What does the circulatory system form?

  A complex network of blood vessels
• What do smaller arteries do in the circulatory system?

  Carry blood away from the heart
• Do capillaries have elastic fibers?


  None
• How abundant are elastic fibers in arteries?


  Abundant
• What are the main functions of the cardiovascular system?

  Transport oxygen and nutrients, remove waste
• What does blood carry in the cardiovascular system?

  Oxygen, nutrients, and waste
• What is the lumen size of a capillary?


  Very narrow
• How does the cardiovascular system help maintain body temperature?

  By regulating blood flow to the skin
• What is the function of the capillaries in the circulatory system?

  The capillaries facilitate the exchange of nutrients, oxygen, and waste between the blood and body tissues.
• What role does the heart play in waste removal from the body?

  It helps remove waste products via blood circulation
• What are the key functions of the heart in the cardiovascular system?

  • Acts as the central pump
  • Pumps blood throughout the body
  • Supplies oxygen and nutrients to tissues
  • Removes waste products from the body
• What are the main components of the circulatory system shown in the image?

  • Artery
  • Capillaries
  • Vein
• How does the heart contribute to the cardiovascular system?

  It acts as the central pump for blood circulation
• What does the heart supply to tissues through blood circulation?

  Oxygen and nutrients
• If the heart stops pumping, what happens to blood circulation?


  Blood circulation ceases throughout the body
• What is the name of the vessel that carries blood from the heart to the body tissues?

  Artery
• What types of blood vessels are included in the cardiovascular system?

  Arteries, veins, and capillaries
• If you wanted to measure the blood pressure in this circulatory system, which vessel would you use?

  Artery
• What type of blood returns to the left atrium in pulmonary circulation?

  Oxygenated blood
• What are the key differences between arteries and veins in the circulatory system?

  Arteries:

  • Carry blood away from the heart
  • Have thicker, more muscular walls
  • Carry oxygenated blood

  
  

  Veins:

  • Carry blood towards the heart
  • Have thinner, less muscular walls
  • Carry deoxygenated blood
• What is the role of the heart in the cardiovascular system?

  Pumps blood through vessels
• What drives the circulation of blood in the cardiovascular system?

  The continuous pumping of the heart
• How does the structure of the pulmonary circulation differ from the systemic circulation?

  The pulmonary circulation has smaller, more numerous capillaries to facilitate gas exchange, while the systemic circulation has larger blood vessels to transport blood throughout the body
• How does the cardiovascular system remove waste products from the body?

  By circulating blood to transport waste
• What type of blood is carried from the right ventricle in pulmonary circulation?

  Deoxygenated blood
• What color are the arteries that carry blood from the heart?

  Red
• What are the three main types of blood vessels?

  Arteries, veins, and capillaries
• What are the key structural features of capillaries?

  • Very small lumen
  • Wall made of a single layer of cells
• What color are the veins that return blood to the heart?

  Blue
• What is the muscle layer thickness in arteries?

  Thick
• What are the key structural features of veins?

  • Thin layer of muscle and elastic fibers
  • Large lumen
  • Fairly thin outer wall
• What is the primary function of the heart?

  To pump blood throughout the body
• How thick is the outer wall of an artery?


  Thick
• How thick is the outer wall of a capillary?

  Single cell
• What are the key structural differences among arteries, veins, and capillaries?

  • Arteries: Thick outer wall, thick muscle layer, abundant elastic fibers, narrow lumen
  • Veins: Thin outer wall, thin muscle layer, some elastic fibers, wide lumen
  • Capillaries: Single cell outer wall, no muscle layer, no elastic fibers, very narrow lumen
• What are the three types of blood vessels?

  Arteries, veins, and capillaries
• What is the primary function of the blood vessels in the circulatory system?

  To distribute blood throughout the body