Mastering Blood Vessels
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Questions and Answers

Which layer of the blood vessel wall is responsible for vasoconstriction and vasodilation?

  • Tunica media (correct)
  • Tunica intima
  • Tunica externa
  • Endothelium

Which layer of the blood vessel wall is the innermost layer and is in direct contact with the blood?

  • Endothelium (correct)
  • Tunica intima
  • Tunica externa
  • Tunica media

Which layer of the blood vessel wall is primarily composed of elastic fibers and smooth muscle cells?

  • Tunica externa
  • Tunica media (correct)
  • Tunica intima
  • Endothelium

Which layer of the blood vessel wall is the outermost layer and provides protection and anchoring to surrounding tissues?

<p>Tunica externa (B)</p> Signup and view all the answers

Which layer of the blood vessel wall is primarily responsible for regulating blood flow and blood pressure?

<p>Tunica media (A)</p> Signup and view all the answers

Which layer of the blood vessel wall contains collagen fibers and helps anchor the blood vessel to surrounding tissues?

<p>Tunica externa (B)</p> Signup and view all the answers

Which layer of the blood vessel wall is responsible for direct contact with the blood and is composed of a single layer of endothelial cells?

<p>Endothelium (B)</p> Signup and view all the answers

Which layer of the blood vessel wall contains elastic fibers and acts as a boundary between the tunica media and tunica externa?

<p>Internal elastic lamina (D)</p> Signup and view all the answers

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