Closed Circulatory System Characteristics
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Questions and Answers

What is the main function of the atria in a mammal's heart?

  • Exchange nutrients with tissues
  • Collect blood that enters the heart (correct)
  • Prevent backflow of blood
  • Pump blood out of the heart
  • Which blood vessels have more elastic walls and thicker walls?

  • Arteries (correct)
  • Capillaries
  • Veins
  • Venules
  • In the cardiovascular system, which blood pathway involves the heart and lungs?

  • Systemic circuit
  • Pulmonary circuit (correct)
  • Arteries circuit
  • Veins circuit
  • What is the main function of valves in the heart?

    <p>Prevent backflow of blood</p> Signup and view all the answers

    Which type of muscle tissue makes up the heart?

    <p>Cardiac muscle tissue</p> Signup and view all the answers

    What is the main characteristic of veins compared to arteries?

    <p>They have valves to prevent backflow</p> Signup and view all the answers

    Which type of muscle tissue lacks sarcomeres?

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

    What function do intercalated discs serve in cardiac muscle tissue?

    <p>Cardiac cell-to-cell communication</p> Signup and view all the answers

    Which type of blood cells is responsible for transporting oxygen and carbon dioxide?

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

    What is the basic contractile unit of a muscle fiber?

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

    Which component is NOT found in bone tissue?

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

    What distinguishes mammalian blood from non-mammalian blood?

    <p>An obvious characteristic seen in lab</p> Signup and view all the answers

    Where is Simple Squamous epithelium mainly located?

    <p>Blood vessels</p> Signup and view all the answers

    What is the primary function of Simple Columnar epithelium?

    <p>Secretion and absorption</p> Signup and view all the answers

    Which connective tissue is mainly responsible for supporting and binding tissues?

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

    How does adipose tissue primarily function?

    <p>Storage, insulation, and cushioning</p> Signup and view all the answers

    In which location would you find Simple Cuboidal epithelium?

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

    What is the main function of Cartilage in the body?

    <p>Reducing friction</p> Signup and view all the answers

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