Questions and Answers
What is the primary function of the tunica media in blood vessels?
To determine the diameter of the vessel
Which of the following is a characteristic of arteries?
Higher pressure
What is the function of the valves in veins?
To prevent backflow
What is the outermost layer of a blood vessel?
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What is the function of the internal elastic membrane in arteries?
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What is the composition of the tunica intima?
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Study Notes
Blood Vessel Layers
- The three layers of blood vessels are: Tunica Externa, Tunica Media, and Tunica Intima/Interna
- Tunica Externa is composed of connective tissue and an external elastic membrane
- Tunica Media is composed of smooth muscle and determines the diameter of the vessel
- Tunica Intima/Interna is a single layer of endothelium (simple squamous)
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Description
Study the basic anatomy of blood vessels, including the layers of arteries and veins, for Exam 3.1 and Picture Exam 2 in Anatomy & Physiology II (BIOL2220).
