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General Anatomy Circulatory System
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General Anatomy Circulatory System

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Questions and Answers

Which part of the heart is responsible for initiating the blood flow in the blood vascular system?

  • Epicardium
  • SA node (correct)
  • Endocardium
  • Myocardium
  • Which structure is a network of drainage vessels for returning excess extravascular fluid, the lymph, to the blood circulatory system?

  • Trabeculae carnae
  • Lymph Vascular System (correct)
  • Tricuspid valve
  • Pulmonic valve
  • What part of the heart is primarily responsible for immunological screening?

  • Tunica Media
  • SA node
  • Aortic valve
  • Lymph Vascular System (correct)
  • Which part of the heart is known as the heart's natural pacemaker?

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

    What is the primary function of the Trabeculae carnae in the heart?

    <p>Increase surface area for papillary muscles</p> Signup and view all the answers

    Which part of the heart is responsible for transporting lymph to the lymph nodes for immunological screening?

    <p>Lymph Vascular System</p> Signup and view all the answers

    What is the main function of the microcirculation or microvasculature?

    <p>Exchange of gases, fluids, nutrients, and metabolic waste products</p> Signup and view all the answers

    Which type of capillaries forms an interconnected network where the exchange of gases, fluids, nutrients, and metabolic waste products occurs?

    <p>Continuous capillaries</p> Signup and view all the answers

    What is the function of venules in the circulatory system?

    <p>Collect excess interstitial fluid called lymph from tissue spaces</p> Signup and view all the answers

    What is the main role of veins in the circulatory system?

    <p>Transport blood from the venules back to the heart</p> Signup and view all the answers

    What is the function of lymphatic capillaries in the lymphatic vascular system?

    <p>Collect excess interstitial fluid called lymph from tissue spaces</p> Signup and view all the answers

    Which duct drains lymph from the chest wall down to lower extremities in the lymphatic vascular system?

    <p>Thoracic duct</p> Signup and view all the answers

    What prevents the backflow of blood particularly in small and medium-sized veins?

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

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