Cardio IQ Test: Cardiovascular System Quiz

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Dmclover73
D
Dmclover73
Community Contributor
Quizzes Created: 14 | Total Attempts: 4,886
| Attempts: 92
SettingsSettings
Please wait...
  • 1/10 Questions

    ______ are thin-walled blood vessels that carry blood to the heart under relatively low pressure.

    • Arteries
    • Venules
    • Arterioles
    • Veins
    • Capillaries
Please wait...
About This Quiz

Ready to pump up your heart knowledge? Introducing the Cardiovascular System Quiz – your ticket to unravel the mysteries of your ticker! Test your understanding of veins, arteries, and heart functions.

This quiz is designed to deepen your knowledge of the cardiovascular system, covering essential topics such as blood vessels, the heart's anatomy, and circulatory functions. Each question is crafted to challenge your knowledge, from the complexities of cardiac anatomy to blood circulation dynamics.

Whether you're a health enthusiast or just curious about your body, this quiz allows you to explore the vital components that keep your heart ticking. Let the Cardiovascular System Quiz be your guide to discovering the wonders of the human circulatory system. Your heart will thank you!

Cardio IQ Test: Cardiovascular System Quiz - Quiz

Quiz Preview

  • 2. 

    ________ are small veins (microscopic in size) that collect blood from __________ and deliver it to larger veins.

    Explanation
    Venules are small veins that collect blood from capillaries and deliver it to larger veins. Capillaries are microscopic blood vessels that connect arterioles and venules, allowing for the exchange of oxygen, nutrients, and waste products between the blood and tissues. Therefore, venules and capillaries work together in the circulatory system to transport blood from the smallest blood vessels (capillaries) to larger ones (venules) for further circulation throughout the body.

    Rate this question:

  • 3. 

    The tunica intima of the veins are composed of ___________.

    Explanation
    The tunica intima of the veins is composed of endothelium. The endothelium is a single layer of cells that lines the inner surface of blood vessels, including veins. It acts as a barrier between the blood and the surrounding tissues, regulating the exchange of substances such as oxygen, nutrients, and waste products. The endothelium also plays a role in maintaining blood vessel tone and preventing clot formation. Therefore, it is the correct answer for the composition of the tunica intima of veins.

    Rate this question:

  • 4. 

    In adults, all veins except for the _____________ carry deoxygenated blood. Venous walls are similar to arterial walls but their ________ have greater diameters.

    Explanation
    In adults, all veins except for the pulmonary veins carry deoxygenated blood. This is because the pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the heart. Venous walls are similar to arterial walls but their lumens have greater diameters. The lumen refers to the inner space or opening of a blood vessel, and in veins, it is typically larger than in arteries to accommodate the lower pressure and slower flow of deoxygenated blood.

    Rate this question:

  • 5. 

    Most veins that are larger than _____ millimeters in diameter have one-way ______ positioned in such a way that they can conduct blood against the force of _______.

    Explanation
    Veins that are larger than 2 millimeters in diameter have one-way valves positioned in such a way that they can conduct blood against the force of gravity. These valves prevent the backflow of blood and ensure that it flows in one direction, towards the heart. This is important because gravity tends to pull blood downwards, and without the valves, blood would accumulate in the lower extremities. The valves open when blood flows towards the heart and close to prevent backflow, allowing efficient circulation throughout the body.

    Rate this question:

  • 6. 

    The ________ is the outermost and most ________ layer of the veins. It contains much more _____ and _________.

    Explanation
    The outermost and most prominent layer of the veins is called the tunica externa. This layer contains a significant amount of collagen and elastic fibers. These fibers provide strength and elasticity to the veins, allowing them to withstand the pressure and stretching that occurs during blood circulation.

    Rate this question:

  • 7. 

    Just like arteries, veins contain three distinct layers which are the _________, the ______ and the __________.

    Explanation
    The correct answer is tunica interna, tunica media, tunica externa. Arteries and veins both have three layers, known as tunics. The innermost layer is called the tunica interna, which is made up of endothelial cells and provides a smooth surface for blood flow. The middle layer is called the tunica media, which contains smooth muscle cells and elastic fibers that help regulate blood pressure and control vessel diameter. The outermost layer is called the tunica externa, which consists of connective tissue and provides support and protection to the vein.

    Rate this question:

  • 8. 

    Veins found in the ______ normally contain valves.

    Explanation
    Veins found in the extremities normally contain valves. The extremities refer to the outermost parts of the body, such as the arms and legs. Valves in veins help to prevent the backflow of blood and ensure that it flows in one direction towards the heart. Given that veins in the extremities are responsible for carrying blood back to the heart, it is essential for them to have valves to facilitate proper circulation.

    Rate this question:

  • 9. 

    The ___________ of the veins are poorly developed. They are composed of a thin layer of _________ and less __________ and their walls will _________ when empty.

    Explanation
    The veins have a poorly developed tunica media, which is the middle layer of the vein wall. This layer is composed of smooth muscle and elastic tissue. Due to their poor development, the walls of the veins will collapse when they are empty.

    Rate this question:

  • 10. 

    The valves of the veins are usually composed of 2 _______ formed by ________ of the __________. They are arranged to permit blood flow toward the heart and not backward in the opposite direction. In other words they prevent _________.

    Explanation
    The valves of the veins are usually composed of 2 cusps formed by inward extensions of the tunica interna. They are arranged to permit blood flow toward the heart and not backward in the opposite direction. In other words, they prevent backflow.

    Rate this question:

Quiz Review Timeline (Updated): Feb 18, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Feb 18, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 30, 2010
    Quiz Created by
    Dmclover73
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.