Heart Circulation

1
Heart Circulation

• Worksheet

2
Fill-in the Blanks

• I. Oxygen-poor blood from the upper region of the
  body enters the ________________________, and
  oxygen-poor blood from the lower region enters
  the _______________________ into the
  _____________ of the heart. This chamber collects
  poor-oxygenated blood returning from the body,
  and then forces it through the _______________
  into the _________________. Blood is then forced
  through the ______________________, which
  controls blood flow into the _________________ .
  These arteries carry blood from the heart to the
  lungs to pick up oxygen.

3

• II. After gas exchange has occured in the
  capillary beds of the lung, the ________________
  will carry the oxygen-rich blood from the lungs
  back to the heart. The chamber of the
  _______________ collects oxygen-rich blood
  returning from the lungs, and the forces it
  through the ________________ into the
  __________________. This chamber is the largest
  and strongest in the heart. It needs enough force
  to push blood through the ____________________
  into the _______, the largest artery. It carries
  oxygen-rich blood from the heart to the rest of
  the body.
• (Answers on next slide)

4
Key

• Aorta
• Pulmonary Arteries
• Left Atrium
• Right Atrium
• Left Ventricle
• Right Ventricle
• Pulmonary Veins
• Bicuspid or Mitral Valve
• Tricuspid Valve
• Pulmonary Semilunar Valve
• Aortic Semilunar Valve
• Superior Vena Cava
• Inferior Vena Cava