Cardiovascular System Quiz
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Questions and Answers

What is the primary function of the cardiovascular system?

  • Protection and temperature regulation
  • Rapid and shorter communications
  • Transport of nutrients, gases, and waste (correct)
  • Support and movement

Which of the following structures is NOT associated with the cardiovascular system?

  • Lungs
  • Kidneys (correct)
  • Heart
  • Blood vessels

Which component of the heart is primarily responsible for pumping oxygenated blood to the body?

  • Right ventricle
  • Right atrium
  • Left ventricle (correct)
  • Left atrium

Which of the following correctly describes systemic circulation?

<p>It involves the distribution of oxygenated blood from the heart to the body. (A)</p> Signup and view all the answers

What role do valves play in the heart?

<p>They prevent the backflow of blood. (B)</p> Signup and view all the answers

Which structure in the heart receives deoxygenated blood from the body?

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

Which of the following components is crucial for maintaining normal blood pressure?

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

During which phase of the cardiac cycle does the heart fill with blood?

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

What role do arteries play in the cardiovascular system?

<p>They carry blood away from the heart. (D)</p> Signup and view all the answers

Which of the following correctly describes the function of veins?

<p>They drain blood back toward the heart. (A)</p> Signup and view all the answers

What initiates the contraction of the heart muscle?

<p>Electrical activity (ECG). (A)</p> Signup and view all the answers

What is the role of the myocardium in the heart?

<p>To contract and pump blood. (B)</p> Signup and view all the answers

Which statement is true regarding the heart valves?

<p>Pressure differences across the valves cause them to open. (C)</p> Signup and view all the answers

Which chambers of the heart are primarily responsible for pumping blood?

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

In a normal heart anatomy, which chambers would blood enter first?

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

What is one key difference between arteries and veins?

<p>Arteries carry blood away from the heart. (B)</p> Signup and view all the answers

What is the primary function of the right side of the heart?

<p>Pumps blood to the lungs for oxygenation (C)</p> Signup and view all the answers

What role does the hepatic portal circulation play in the body?

<p>Returns blood from spleen and intestines to the liver (B)</p> Signup and view all the answers

How does fetal circulation differ from adult circulation regarding oxygen supply?

<p>Fetus receives oxygen through the umbilical cord from the mother (B)</p> Signup and view all the answers

What information does blood pressure provide about the cardiovascular system?

<p>It reflects arterial pressure at two points in the cardiac cycle (B)</p> Signup and view all the answers

Which of the following correctly defines systolic blood pressure?

<p>Pressure in arteries when the heart beats (C)</p> Signup and view all the answers

What anatomical structures are included in the portal triad?

<p>Hepatic artery, portal vein, bile duct (C)</p> Signup and view all the answers

What happens to blood flow in the fetal circulatory system before birth?

<p>Blood bypasses the liver and lungs (D)</p> Signup and view all the answers

What does pulse measure in the human body?

<p>Number of heartbeats per minute (C)</p> Signup and view all the answers

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