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Questions and Answers
What is the function of vasa vasorum in the cardiovascular system?
What is the function of vasa vasorum in the cardiovascular system?
- Ensure one-way flow of blood in veins
- Deliver nutrients and remove waste from the cells of large vessels (correct)
- Control blood pressure in arteries
- Transport blood away from the heart
Which blood vessels have valves to prevent backflow?
Which blood vessels have valves to prevent backflow?
- Veins (correct)
- Capillaries
- Venules
- Arteries
In the cardiovascular system, what is the primary function of precapillary sphincters?
In the cardiovascular system, what is the primary function of precapillary sphincters?
- To constrict smooth muscle in arteries
- To prevent blood backflow in veins
- To regulate blood pressure in arterioles
- To allow blood into a capillary bed or not (correct)
What is the function of a venule in the cardiovascular system?
What is the function of a venule in the cardiovascular system?
What is the primary function of arterioles in the cardiovascular system?
What is the primary function of arterioles in the cardiovascular system?
Which type of capillary allows plasma proteins and cells to pass through due to its structure?
Which type of capillary allows plasma proteins and cells to pass through due to its structure?
What does the external elastic membrane separate in the cardiovascular system?
What does the external elastic membrane separate in the cardiovascular system?
What is the primary function of metarterioles in the cardiovascular system?
What is the primary function of metarterioles in the cardiovascular system?
Which factor has a direct impact on blood pressure and flow resistance in the cardiovascular system?
Which factor has a direct impact on blood pressure and flow resistance in the cardiovascular system?
What happens if mean arterial pressure (MAP) falls below 60 mm Hg for an extended period of time?
What happens if mean arterial pressure (MAP) falls below 60 mm Hg for an extended period of time?
What is the role of the skeletal muscle pump in the venous system?
What is the role of the skeletal muscle pump in the venous system?
How does vasoconstriction affect the flow in arteries?
How does vasoconstriction affect the flow in arteries?
What are the main substances that use transporters to move through capillary walls?
What are the main substances that use transporters to move through capillary walls?
Which factor causes bulk flow to move fluid from capillaries into tissues?
Which factor causes bulk flow to move fluid from capillaries into tissues?
How much fluid is reabsorbed back into the capillaries each day?
How much fluid is reabsorbed back into the capillaries each day?
What hormone targets the kidneys to reabsorb water, increasing blood volume and pressure?
What hormone targets the kidneys to reabsorb water, increasing blood volume and pressure?
How does the Renin-Angiotensin-Aldosterone Mechanism affect blood pressure?
How does the Renin-Angiotensin-Aldosterone Mechanism affect blood pressure?
What type of shock involves an inability to deliver adequate oxygen for normal cellular metabolism?
What type of shock involves an inability to deliver adequate oxygen for normal cellular metabolism?
Clinical Considerations: What can chronic high blood pressure (140/90 or above) lead to?
Clinical Considerations: What can chronic high blood pressure (140/90 or above) lead to?
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