26 Questions
Which layer of an artery maintains elasticity and contractility?
Tunica media
What is the term for the alternate blood route from an anastomosis?
Collateral circulation
What type of blood vessels connect arterioles and venules?
Capillaries
Which type of blood vessels regulate blood flow through true capillaries?
Pre-capillary sphincters
What are the characteristics of venules?
They are formed from the union of several capillaries
What is the function of blood reservoirs in the cardiovascular system?
To store blood and move it to other parts of the body
Which type of blood vessels carry blood away from the heart to the tissues?
Arteries
What is the term for the distal ends of two or more vessels uniting?
Anastomosis
What is the function of arterioles in regulating blood flow?
Delivering blood to capillaries
Which type of blood vessels are composed of only a single layer of cells and a basement membrane?
Capillaries
What is the term for the extensive capillary network throughout the tissue?
Capillary network
What are large arteries referred to as?
Elastic arteries
What is the term for arteries that do not anastomose?
End arteries
What is the term for the decrease in the size of the lumen of a blood vessel?
Vasoconstriction
What is the term for the increase in the size of the lumen of a blood vessel?
Vasodilation
What is the term for the interruption of blood supply to a whole segment of an organ?
Occlusion
Which type of blood vessels have thinner walls and less smooth muscle compared to arteries?
Veins
What is the term for the rings of smooth muscle fibers that regulate blood flow through true capillaries?
Pre-capillary sphincters
Which type of blood vessels are wider, more tortuous, and specialized for the functions of specific organs?
Sinusoids
What is the term for small vessels that are formed from the union of several capillaries and merge to form veins?
Venules
What are the characteristics of continuous capillaries?
They have no smooth muscle
What is the term for the blood vessels that contain valves to prevent backflow of blood?
Veins
What can weak valves in veins lead to?
Varicose veins
What is the term for the blood vessels that are veins with very thin walls and no smooth muscle?
Sinusoids
Where is the largest portion of the blood volume at rest?
Veins
What is the function of blood reservoirs in the cardiovascular system?
They store blood
Test your knowledge of the anatomy of blood vessels, focusing on arteries. Learn about the structure and function of arteries, including their role in carrying blood away from the heart. Explore the different layers of the arterial wall and understand the classification of arteries based on size and function.
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