The Heart

• What kind of organ is the heart?

  a muscular organ
• How many pumps is the heart made of?

  2
• What does the right pump of the heart do?

  forces deoxygenated blood to the lungs where it picks up oxygen and loses carbon dioxide
• What does the left pump do?

  pumps the oxygenated blood to the rest of the body, which needs a bigger force
• How many chambers does the heart have ?

  4
• What are the upper chambers of the heart called?

  the atria
• Where does the right atrium receive blood from?

  the vena cava
• Where does the left atrium receive blood from?

  the Pulmonary vein
• Why do the atria contract together?

  to move blood into the lower chambers of the heart
• What are the lower chambers of the heart called?

  The Ventricles
• What happens when the ventricles contract?

  they force blood out of the heart
• Where does the right ventricle push blood?

  into the pulmonary artery
• Where does the left ventricle push blood?

  into the aorta
• Which chamber of the heart has the thickest walls?

  The left ventricle
• What do valves in the heart do?

  prevent the blood from flowing in the wrong direction
• Label the Heart:

  A) Aorta

  B) Pulmonary Vein

  C) left atrium

  D) left ventricle

  E) right ventricle

  F) right atrium

  G) vena cava

  H) pulmonary artery

  
• What supplies oxygenated blood to the heart muscle?

  the coronary artery
• When does Coronary Heart Disease occur?

  when the coronary arteries become blocked or narrower due to a buildup of fatty material inside them
• What can doctors use to open up the arteries

  a stent
• Why is it important for the for the arteries to remain open?

  they allow the blood to deliver nutrients and oxygen to the heart muscles, allowing it to function.
• What else can be used to replace damaged coronary arteries?

  Bypass surgery with lengths of vein
• What drugs can be used to reduce the fatty buildup in arteries?

  Statins - lower the cholesterol levels
• Label the stages of putting a stent into an artery:

  A) Stent and balloon

  B) Fatty deposits narrow artery

  C) Balloon inflated to open stent and artery

  D) stent holds artery open