Cardiovascular System (PSL301H) - Lectures and Textbook Chapter Quiz
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Questions and Answers

What is the main function of the circulatory system?

  • Protection against pathogens
  • Regulation of body temperature
  • Production of red blood cells
  • Transport of nutrients and waste products throughout the body (correct)

    • Which structure of the heart is primarily responsible for pumping blood to the rest of the body?

  • Pulmonary artery
  • Ventricles (correct)
  • Pulmonary vein
  • Atria

    • What is the primary function of cardiac muscle?

  • Voluntary movement
  • Digestion of food
  • Generation and conduction of electrical signals for heart contraction (correct)
  • Production of hormones

    • Which of the following is a key factor in controlling blood flow?

    <p>Pressure gradients and resistance</p> Signup and view all the answers

    What is the primary function of the microvasculature in the cardiovascular system?

    <p>Exchange of nutrients and waste products with tissues</p> Signup and view all the answers

    How does an electrical signaling lead to contraction in cardiac muscle?

    <p>Opening of voltage-gated calcium channels and release of calcium ions</p> Signup and view all the answers

    What is the main function of the circulatory system?

    <p>Transport and distribute essential substances to the tissues</p> Signup and view all the answers

    Which vessels carry blood away from the heart in the systemic circuit?

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

    What is the main component of the heart muscle?

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

    Which valves are found at the ventricular exit points?

    <p>Semilunar valves</p> Signup and view all the answers

    What ensures one-way flow of blood through the heart?

    <p>Heart valves</p> Signup and view all the answers

    Which vessels return O2-rich blood to the left atrium in the pulmonary circuit?

    <p>Pulmonary veins</p> Signup and view all the answers

    What is the function of the chordae tendineae in the heart?

    <p>Ensuring one-way flow of blood</p> Signup and view all the answers

    What vessels carry O2-rich blood from the left ventricle in the systemic circuit?

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

    What is the purpose of coronary arteries and veins?

    <p>To supply oxygen and nutrients to the heart muscle</p> Signup and view all the answers

    Where does blood follow after passing through the right atrium?

    <p>Right ventricle</p> Signup and view all the answers

    What are the symptoms experienced by Erica Fine, the first-year undergraduate student?

    <p>Fatigue, irritability, and lightheadedness</p> Signup and view all the answers

    What is the primary function of blood in the human body according to the given text?

    <p>Transporting gases, nutrients, and hormones</p> Signup and view all the answers

    What is the process described as 'hematopoiesis'?

    <p>Formation of blood cells</p> Signup and view all the answers

    What is the possible cause of Erica Fine's symptoms based on the provided information?

    <p>Anemia due to dietary changes</p> Signup and view all the answers

    What is the estimated blood volume in a 70 kg male according to the provided information?

    <p>$5$ L</p> Signup and view all the answers

    Which of the following is NOT a function of blood in the human body?

    <p>Producing insulin</p> Signup and view all the answers

    What is the primary function of hematocrit?

    <p>To carry oxygen to tissues</p> Signup and view all the answers

    What is the normal range of hematocrit?

    <p>37-54%</p> Signup and view all the answers

    Which plasma protein is primarily responsible for generating colloid osmotic pressure?

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

    What causes high blood viscosity?

    <p>Abnormal erythrocyte precursors</p> Signup and view all the answers

    What might Leon be suffering from based on his symptoms?

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

    How does the body fight infection?

    <p>By releasing antibodies</p> Signup and view all the answers

    What is the cause of fever in an infected individual?

    <p>Pyrogens released during infection</p> Signup and view all the answers

    Which component is primarily responsible for carrying oxygen to tissues?

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

    Which plasma protein primarily serves as carriers?

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

    What is the primary function of thrombocytes?

    <p>Participating in blood clotting</p> Signup and view all the answers

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