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Questions and Answers
What is the primary function of the tunica intima in blood vessels?
What is the primary function of the tunica intima in blood vessels?
- To supply oxygen and nutrients to the blood vessel wall
- To facilitate blood flow through a smooth, endothelial lining (correct)
- To regulate blood pressure through smooth muscle contraction
- To provide structural support through collagenous fibers
Which of the following types of arteries is characterized by the presence of elastic fibers, allowing for stretch and recoil with each heartbeat?
Which of the following types of arteries is characterized by the presence of elastic fibers, allowing for stretch and recoil with each heartbeat?
- Medium-sized arteries or muscular distributing arteries
- Arterioles
- Veins
- Large elastic arteries (correct)
What is the main component of the internal elastic lamina in the tunica intima?
What is the main component of the internal elastic lamina in the tunica intima?
- Smooth muscle cells
- Collagenous fibers
- Reticular fibers
- Elastic fibers (correct)
What is the term for the tiny blood vessels found in the tunica adventitia, which supply oxygen and nutrients to the blood vessel wall?
What is the term for the tiny blood vessels found in the tunica adventitia, which supply oxygen and nutrients to the blood vessel wall?
Which layer of the blood vessel wall is composed of circularly arranged smooth muscle cells, elastic fibers, and fine collagenous and reticular fibers?
Which layer of the blood vessel wall is composed of circularly arranged smooth muscle cells, elastic fibers, and fine collagenous and reticular fibers?
What is the primary function of the vascular tissue in the body?
What is the primary function of the vascular tissue in the body?
What is the primary function of blood capillaries in the body?
What is the primary function of blood capillaries in the body?
What is the typical diameter of blood capillaries?
What is the typical diameter of blood capillaries?
What type of capillaries is found in muscle tissue, exocrine glands, and nervous tissue?
What type of capillaries is found in muscle tissue, exocrine glands, and nervous tissue?
What is the structure that forms the wall of blood capillaries?
What is the structure that forms the wall of blood capillaries?
What is the characteristic of fenestrated capillaries?
What is the characteristic of fenestrated capillaries?
What type of blood vessels are blood sinusoids?
What type of blood vessels are blood sinusoids?
What is the primary function of the thick walls of arteries?
What is the primary function of the thick walls of arteries?
Which tunica layer of an artery is rich in elastic fibers?
Which tunica layer of an artery is rich in elastic fibers?
What differentiates a medium-sized artery from a medium-sized vein?
What differentiates a medium-sized artery from a medium-sized vein?
What is the primary component of the ground substance in the tunica media?
What is the primary component of the ground substance in the tunica media?
Which layer of an artery contains vasa vasorum, lymphatics, and nerves?
Which layer of an artery contains vasa vasorum, lymphatics, and nerves?
What is the function of elastic fibers in arteries?
What is the function of elastic fibers in arteries?
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