Blood Vessels Quiz
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Questions and Answers

Which blood vessel carries blood away from the heart?

  • Venules
  • Arterioles (correct)
  • Capillaries
  • Veins
  • What is the thinnest layer in the arteries and veins?

  • Tunica externa
  • Tunica media
  • Endothelium
  • Tunica intima (correct)
  • What is the function of capillaries?

  • Transporting nutrients from the digestive system
  • Carrying blood away from the heart
  • Returning blood to the heart
  • Exchange of water and chemicals between blood and tissues (correct)
  • Which term is derived from the Latin word 'vas' meaning vessel?

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

    Which structures are labeled as avascular?

    <p>Cartilage, the epithelium, and the lens and cornea of the eye</p> Signup and view all the answers

    Study Notes

    Blood Vessels and Circulation

    • Arteries are the blood vessels that carry blood away from the heart, transporting oxygen-rich blood to the body.
    • The thinnest layer in both arteries and veins is the tunica intima, which provides a smooth surface for blood flow and is composed of endothelial cells.

    Capillaries and Their Functions

    • Capillaries are tiny blood vessels that connect arteries and veins and facilitate the exchange of oxygen, nutrients, and waste products between blood and tissues.
    • Their thin walls, one cell thick, enable efficient diffusion and transport at the cellular level.

    Terminology and Structure

    • The term "vascular" is derived from the Latin word 'vas,' which means vessel, referring to the system of blood vessels in the body.
    • Structures labeled as avascular include certain tissues such as cartilage and the lens of the eye, which lack blood vessels and rely on diffusion for nutrient absorption.

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    Description

    Test your knowledge of the circulatory system with this quiz on blood vessels. Explore the different types of blood vessels and their functions in transporting blood, nutrients, and oxygen throughout the body. Brush up on your understanding of the vital role that blood vessels play in sustaining life.

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