Microvascular Capillaries Quiz
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Questions and Answers

Which type of blood vessel contains pinocytotic vesicles allowing for transcytosis of macromolecules?

  • Continous capillary (correct)
  • Sinusoid capillary
  • Venule
  • Arteriole
  • In which type of blood vessel is the endothelium polygonal, with thin elastic fibers in the tunica intima?

  • Continuous capillary
  • Sinusoid capillary
  • Arteriole
  • Venule (correct)
  • Which type of capillary is found in tissues where rapid exchange of substances occurs, such as in the kidneys and intestines?

  • Continuous capillary
  • Fenestrata capillary (correct)
  • Sinusoid capillary
  • Arteriole
  • What is a notable feature of sinusoid capillaries that distinguishes them from other types of capillaries?

    <p>Large fenestrae without diaphragms</p> Signup and view all the answers

    Which blood vessel consists of smooth muscle running in a circular direction in the tunica media?

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

    Where are continuous capillaries typically found based on their structural characteristics?

    <p>In all muscle tissues</p> Signup and view all the answers

    Which layer of blood vessels contains endothelial cells, subendothelium, and abundant elastic fibers with smooth muscle cells?

    <p>Media Layer</p> Signup and view all the answers

    What is the main component of the adventitia layer of blood vessels?

    <p>Collagen Fibers</p> Signup and view all the answers

    In which type of artery is the internal elastic lamina clearly defined in the tunica intima?

    <p>Elastic Artery</p> Signup and view all the answers

    What is a characteristic feature of the tunica media in small arteries?

    <p>Reticular Fibers Intertwined with Elastic Fibers</p> Signup and view all the answers

    Which type of blood vessel lacks an internal elastic lamina in its tunica intima?

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

    What is a characteristic of microvascular capillaries?

    <p>Endothelium and Subendothelium</p> Signup and view all the answers

    What is the main function of the cardiovascular system?

    <p>To carry blood to and from body tissues</p> Signup and view all the answers

    Which of the following is NOT a component of the cardiovascular system?

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

    Which layer of the heart wall consists of smooth muscle cells, elastin, and collagen?

    <p>Elastic-muscular layer</p> Signup and view all the answers

    How does the endocardium of the atrium compare to the endocardium of the ventricle?

    <p>Endocardium of the atrium contains more connective tissue than endocardium of the ventricle</p> Signup and view all the answers

    What is the main component of microvascular capillaries?

    <p>Endothelial cells</p> Signup and view all the answers

    Which type of capillaries has a complete endothelial lining with tight junctions?

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

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