Cardiovascular System and Heart Quiz
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Questions and Answers

Which type of blood vessels carry blood away from the heart?

  • Arteries (correct)
  • Capillaries
  • Venules
  • Veins

Which blood vessels have large diameters and thick walls closest to the heart?

  • Capillaries
  • Veins
  • Arteries (correct)
  • Venules

Which blood vessels have walls that are one cell layer thick?

  • Venules
  • Veins
  • Arteries
  • Capillaries (correct)

Which blood vessels bring blood back to the heart?

<p>Veins (C)</p> Signup and view all the answers

What is the function of the pulmonary circuit?

<p>Takes blood toward the lungs (C)</p> Signup and view all the answers

What is the function of the systemic circuit?

<p>Takes blood toward the tissues (A)</p> Signup and view all the answers

Why do arteries closest to the heart have large diameters and thick walls?

<p>To reduce fluid pressure from the heart (A)</p> Signup and view all the answers

Why do veins have thinner walls compared to arteries?

<p>Because the heart's pumping puts less pressure on venous blood (A)</p> Signup and view all the answers

What allows for rapid exchange of gases, nutrients, and waste across the blood vessel wall?

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

Why does blood continue to flow toward the heart in veins despite the low pressure?

<p>Due to fluid dynamics (B)</p> Signup and view all the answers

Which organ is part of the cardiovascular system?

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

What is the function of the cardiovascular system?

<p>Transporting blood and nutrients (C)</p> Signup and view all the answers

Which chamber of the heart pushes blood throughout the body?

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

What is the purpose of the atria in the heart?

<p>To receive blood from the body or lungs (C)</p> Signup and view all the answers

What is the function of the pericardium?

<p>To surround the heart and protect it (C)</p> Signup and view all the answers

What are the three layers that compose the walls of the heart?

<p>Epicardium, Myocardium, Endocardium (D)</p> Signup and view all the answers

What are the two types of valves found in the heart?

<p>Tricuspid valve, Bicuspid valve (B)</p> Signup and view all the answers

Which blood vessels have three layers in their walls?

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

Where does blood enter the right atrium from?

<p>Superior and inferior vena cava and the cardiac sinus (C)</p> Signup and view all the answers

What is the purpose of the septum in the heart?

<p>To separate the atria from the ventricles (A)</p> Signup and view all the answers

What are the three components of the cardiovascular system?

<p>The heart, lungs, and blood vessels (D)</p> Signup and view all the answers

Which layer of the heart contracts to create heartbeats?

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

What is the function of the atria in the heart?

<p>To receive blood from the body or lungs (D)</p> Signup and view all the answers

What is the purpose of the septum in the heart?

<p>To separate the left and right sides of the heart (D)</p> Signup and view all the answers

Which valves in the heart open to allow blood to pass and then close when the chamber contracts to pump?

<p>Atrioventricular valves (C)</p> Signup and view all the answers

Where does blood enter the right atrium from?

<p>The superior and inferior vena cava and the cardiac sinus (C)</p> Signup and view all the answers

Which blood vessels carry blood away from the heart?

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

What are the three layers that compose the walls of the heart?

<p>Epicardium, myocardium, and endocardium (D)</p> Signup and view all the answers

Which blood vessels have walls that are one cell layer thick?

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

What is the function of the pericardium?

<p>To secrete a lubricating fluid that surrounds the heart (B)</p> Signup and view all the answers

Which blood vessels are on the output side of the heart?

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

What is the function of arterioles?

<p>To lead to capillaries (D)</p> Signup and view all the answers

Why do arteries closest to the heart have large diameters and thick walls?

<p>To stretch and recoil with each heartbeat (B)</p> Signup and view all the answers

What is the structure of the wall of a capillary?

<p>One cell layer thick (B)</p> Signup and view all the answers

Why does blood continue to flow toward the heart in veins despite the low pressure?

<p>Due to fluid dynamics (A)</p> Signup and view all the answers

What is the function of the pulmonary circuit?

<p>To exchange carbon dioxide in the blood for oxygen (C)</p> Signup and view all the answers

What is the function of the systemic circuit?

<p>To take blood toward the tissues (D)</p> Signup and view all the answers

Which blood vessels bring blood back to the heart?

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

Which type of blood vessels have walls that do not become as thick as arterial walls?

<p>Veins (C)</p> Signup and view all the answers

What is the purpose of the atria in the heart?

<p>To collect blood returning to the heart (A)</p> Signup and view all the answers

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