Structure and Function of the Heart Quiz
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Questions and Answers

Which valve separates the left atrium from the left ventricle?

  • Aortic valve
  • Mitral valve (correct)
  • Tricuspid valve
  • Pulmonary valve

    • What is the function of the sinoatrial (SA) node?

  • It acts as the pacemaker of the heart (correct)
  • It pumps blood out of the heart
  • It regulates the contraction of the ventricles
  • It controls the opening and closing of the atrioventricular valves

    • Which neurotransmitter slows down the heart rate?

  • Norepinephrine
  • Acetylcholine (correct)
  • Epinephrine
  • Dopamine

    • What is the purpose of an electrocardiogram (ECG)?

    <p>To record the electrical activity of the heart</p> Signup and view all the answers

    Which type of lipoprotein carries cholesterol away from the arteries, reducing the risk of heart disease?

    <p>High-density lipoprotein (HDL)</p> Signup and view all the answers

    What is the primary symptom of peripheral arterial disease?

    <p>Intermittent claudication (pain with walking)</p> Signup and view all the answers

    What is the difference between a fusiform and a saccular aortic aneurysm?

    <p>A fusiform aneurysm is uniform in shape, while a saccular aneurysm is an out-pouching</p> Signup and view all the answers

    What is the primary cause of arteriosclerosis?

    <p>Atherosclerosis</p> Signup and view all the answers

    What is the normal range for systolic blood pressure in adults?

    <p>120-140 mmHg</p> Signup and view all the answers

    What is the term used to describe the contraction phase of the heart chambers?

    <p>Systole</p> Signup and view all the answers

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