Blood Vessel Layers: Tunica Intima, Tunica Media & Tunica Adventitia


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Which of the following is the outermost layer of arteries and veins?

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1. What is the the function of the Tunica Media within the blood vessel?

2. Which layer of a blood vessel is present in all parts of the circulatory system?

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About This Quiz & Worksheet

How many layers are found in blood vessels, what are these layers called and how does the number of layers differ from one type of vessel to another? These are among the topics you'll need to know to correctly answer the questions found in this quiz/worksheet combo.

Quiz and Worksheet Goals

In these assessments, you'll be tested on:

  • The term used to describe the outermost layer of arteries and veins
  • The term used to describe the layer with smooth muscle that allows for constriction
  • The term used to describe the layer present in all types of blood vessels
  • A factor that makes vasoconstriction possible
  • The vessel through which gases and nutrients are exchanged

Skills Practiced

This worksheet and quiz will allow you to test the following skills:

  • Reading comprehension - ensure that you draw the most important information regarding each layer of blood vessel walls
  • Defining key concepts - ensure that you can accurately define main phrases, such as tunic intima and tunic adventitia
  • Distinguishing differences - compare and contrast vasoconstriction and vasodilation
  • Knowledge application - use your knowledge to answer questions about why some vessels have three layers and some have only one

Additional Learning

To learn more about this subject, review the accompanying lesson called Blood Vessel Layers: Tunic Intima, Tunic Media & Tunic Adventitia. This lesson covers the following objectives:

  • Explain the circulatory process
  • Name the inner, middle and outer layers of blood vessels
  • Identify how many layers are found in each type of blood vessel
  • Inform the reader why some vessels have more layers than others
  • Detail how blood vessels narrow and widen through tightening and relaxing of vessel walls