Test Your Heart Anatomy Knowledge

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Questions and Answers

What is the pericardium composed of?

  • One layer: the serous pericardium.
  • Two layers: the muscular pericardium and the fibrous pericardium.
  • Two layers: the fibrous pericardium and the serous pericardium. (correct)
  • One layer: the fibrous pericardium.

Which structure is responsible for distributing electrical signals to the ventricles?

  • SA node
  • Aortic valve
  • Mitral valve
  • AV node (correct)

True or false: The right and left aortic sinuses give origin to the right and left ventricles of the heart.

False (B)

Which coronary artery arises from the left aortic sinus?

<p>Left coronary artery (B)</p> Signup and view all the answers

What are the four chambers of the heart?

<p>Right and left ventricles and atria (A)</p> Signup and view all the answers

True or false: The mitral valve is located between the left atrium and right ventricle.

<p>False (B)</p> Signup and view all the answers

What is the function of the cardiac plexus?

<p>To control the heart's rate and force of contractions (B)</p> Signup and view all the answers

True or false: The AV node is located near the opening of the pulmonary artery.

<p>False (B)</p> Signup and view all the answers

What type of blood does the right side of the heart receive?

<p>Poorly oxygenated blood (A)</p> Signup and view all the answers

Which valve is located between the left atrium and left ventricle?

<p>Mitral valve (D)</p> Signup and view all the answers

What type of blood does the left side of the heart receive?

<p>Well-oxygenated blood (C)</p> Signup and view all the answers

True or false: The cardiac plexus contains only sympathetic fibers that control the heart's rate and force of contractions.

<p>False (B)</p> Signup and view all the answers

What is the name of the structure that is the pacemaker of the heart?

<p>SA node (D)</p> Signup and view all the answers

True or false: The SA node is located in the right atrium of the heart.

<p>True (A)</p> Signup and view all the answers

What is the function of the AV valve?

<p>Prevents backflow of blood from the ventricles to the atria (D)</p> Signup and view all the answers

What is the function of the semilunar valve?

<p>Prevents backflow of blood from the arteries to the ventricles. (A)</p> Signup and view all the answers

Which chamber of the heart forms most of the base of the heart?

<p>Left atrium. (D)</p> Signup and view all the answers

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Study Notes

  1. The pericardium is a double fibroserous membrane covering the heart and great vessels.
  2. It is composed of two layers: the fibrous pericardium and the serous pericardium.
  3. The pericardial cavity is the space between the layers of the serous pericardium.
  4. The heart is a double muscular pump with four chambers.
  5. The right side of the heart receives poorly oxygenated blood and pumps it to the lungs for oxygenation.
  6. The left side of the heart receives well-oxygenated blood and pumps it into the aorta for distribution to the body.
  7. The right atrium receives venous blood from the superior and inferior vena cava and coronary sinus.
  8. The right ventricle forms the largest part of the anterior surface of the heart and leads into the pulmonary trunk.
  9. The left atrium forms most of the base of the heart and receives blood from the four pulmonary veins.
  10. The left ventricle forms the apex of the heart and pumps blood into the ascending aorta through the aortic valve.

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