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Questions and Answers
What are the tiny vessels that connect arteries and veins?
What are the tiny vessels that connect arteries and veins?
Capillaries
What type of vessel carries blood away from the heart?
What type of vessel carries blood away from the heart?
Arteries
What type of vessel carries blood toward the heart?
What type of vessel carries blood toward the heart?
Veins
What are the smallest branches of arteries called?
What are the smallest branches of arteries called?
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What is the innermost layer of a blood vessel called?
What is the innermost layer of a blood vessel called?
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What is the middle layer of a blood vessel called?
What is the middle layer of a blood vessel called?
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Which type of blood vessel has a thicker tunica media?
Which type of blood vessel has a thicker tunica media?
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Which type of blood vessel has a larger diameter?
Which type of blood vessel has a larger diameter?
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Which type of blood vessel is more pulsatile?
Which type of blood vessel is more pulsatile?
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Which type of blood vessel is described as collapsible tubes?
Which type of blood vessel is described as collapsible tubes?
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Which type of blood vessel has valves that prevent backflow of blood?
Which type of blood vessel has valves that prevent backflow of blood?
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Which type of blood vessel has faster blood flow?
Which type of blood vessel has faster blood flow?
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Which type of blood vessel is aided by skeletal muscle contractions to help blood flow?
Which type of blood vessel is aided by skeletal muscle contractions to help blood flow?
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Which of the following is a major branch of the abdominal aorta? (Select all that apply)
Which of the following is a major branch of the abdominal aorta? (Select all that apply)
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Where does the Celiac Axis arise from?
Where does the Celiac Axis arise from?
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What does SMA stand for?
What does SMA stand for?
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What is the direction in which the Renal Arteries arise from the abdominal aorta?
What is the direction in which the Renal Arteries arise from the abdominal aorta?
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Which of the following are branches that arise from the aortic arch? (Select all that apply)
Which of the following are branches that arise from the aortic arch? (Select all that apply)
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What is the third branch of the aortic arch?
What is the third branch of the aortic arch?
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The Innominate artery is also known as the right brachiocephalic artery.
The Innominate artery is also known as the right brachiocephalic artery.
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Study Notes
Blood Vessel Structure and Function
- Capillaries: Tiny vessels connecting arteries and veins.
- Arteries: Blood vessels carrying blood away from the heart.
- Veins: Blood vessels carrying blood toward the heart.
- Arterioles: Smallest branches of arteries.
- Venules: Smallest branches of veins.
Vessel Wall Layers (Tunics)
- Tunica Intima (Inner): Endothelial layer, connective tissue, elastic layer.
- Tunica Media (Middle): Smooth muscle, elastic tissue, collagenous tissue.
- Tunica Adventitia (Outer): Loose connective tissue, smooth muscle bundles, elastic tissue.
Arteries vs. Veins
- Thicker Tunica Media: Arteries
- Larger Diameter: Veins
- More Pulsatile: Arteries
- Collapsible Tubes: Veins
- Valves prevent backflow: Veins (not heart valves)
- Faster Blood Flow: Arteries
- Thinner Tunica Media: Veins
- Aided by skeletal muscle contractions: Veins
Major Abdominal Aorta Branches
- Celiac Axis: Anterior branch of the abdominal aorta.
- SMA: Superior mesenteric artery, anterior branch.
- Renal Arteries: Lateral branches of the abdominal aorta.
- IMA: Inferior mesenteric artery, anterior branch.
Major Aortic Arch Branches
- Innominate (Rt Brachiocephalic Artery): First branch from the aortic arch.
- LT CCA: Left common carotid artery, second aortic arch branch.
- LT Subclavian Artery: Third branch from the aortic arch.
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Description
This quiz covers the structure and function of blood vessels, including arteries, veins, and capillaries. Learn about the different wall layers of vessels and compare the characteristics of arteries and veins. Understand the important branches of the abdominal aorta.
