The Human Heart

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The Human Heart
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Parts of the Internal Heart

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Path of Blood Flow
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Pulmonary Valve

• Keeps blood from flowing back into the right
  ventricle

Back to the Heart
4
Bicuspid Valve

• Prevents blood from flowing back into the left
  atrium
• Also called the Mitral valve

Back to the Heart
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Left Atrium

• Receives oxygen rich blood from the pulmonary
  veins

Back to the Heart
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Pulmonary Trunk

• Transfers blood through the pulmonary arteries to
  the lungs

Back to the Heart
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Aortic Valve

• Prevents blood from going back into the left
  ventricle

• Back to the Heart

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Tricuspid Valve

• Prevents backflow of blood to the right atrium
• 3 cusps

Back to the Heart
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Aorta

• Blood flows from the aorta throughout the entire
  body
• Largest vessel in the body

Back to the Heart
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Left Ventricle

• Pumping chamber which forces blood through the
  aortic valve
• More muscular than the right ventricle

Back to the Heart
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Right Atrium

• Collecting chamber
• Blood is forced to the right ventricle

Back to the Heart
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Interventricular Septum

• Separates the pumping chambers of the heart

Back to the Heart
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Superior Vena Cava

• Blood from the SVC IVC is released into the
  right atrium

Back to the Heart
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Path of Blood Flow

• Place the following items in the correct
  sequence body tissue, aorta, bicuspid valve,
  left atrium, lungs, pulmonary trunk, pulmonary
  arteries, left ventricle, pulmonary veins, right
  atrium, right ventricle, tricuspid valve, aortic
  valve, pulmonary valve.
• Oxygen poor blood is collected from the
  inferior and ___________ _______ ________. It is
  released into the _________ _______ where it
  moves through the _________ valve into the
  ________ __________. When the right ventricle
  contracts, blood is forced through the _________
  valve into the ____________ _______ which splits
  into the left right pulmonary __________.
  Blood is taken via the arteries to the _____
  where oxygen carbon dioxide diffuse through the
  simple squamous tissue. Oxygen-rich blood then
  returns to the heart via the ___________ ________
  which empty into the _________ ________. Once
  the atrium contracts, the blood passes through
  the __________ ________ into the _________
  _________. Once the ventricle contracts blood is
  forced through the _________ valve and out of the
  _________ to travel to the _______ ________ .

Answer
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Right Ventricle

• Receives blood from the superior and inferior
  vena cava

Back to the Heart
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Path of Blood Flow Answer Sheet

• Superior Vena Cava
• Right Atrium
• Tricuspid Valve
• Right Ventricle
• Pulmonary Valve
• Pulmonary Trunk
• Pulmonary Arteries
• Lungs
• Pulmonary Veins
• Left Atrium
• Bicuspid Valve/Mitral valve
• Left Ventricle
• Aortic Valve
• Aorta
• Body Tissue

Back to the Heart