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Questions and Answers
What is the role of vasa vasorum in blood vessels?
What is the role of vasa vasorum in blood vessels?
- Act as a barrier to prevent substances from entering the vessel walls
- Control blood pressure through vasoconstriction
- Prevent backflow of blood in veins
- Deliver nutrients and remove waste from the cells of large vessels (correct)
What is the purpose of valves in veins?
What is the purpose of valves in veins?
- Ensure smooth blood flow in arteries
- Promote vasoconstriction
- Increase blood pressure
- Prevent backflow of blood (correct)
Which type of capillary has pores and is permeable to larger molecules?
Which type of capillary has pores and is permeable to larger molecules?
- Sinusoid capillaries
- Metarteriole capillaries
- Fenestrated capillaries (correct)
- Continuous capillaries
What is the function of precapillary sphincters?
What is the function of precapillary sphincters?
How is systolic blood pressure defined?
How is systolic blood pressure defined?
What is the purpose of measuring pulse pressure?
What is the purpose of measuring pulse pressure?
How does an increase in vessel radius affect blood flow and pressure?
How does an increase in vessel radius affect blood flow and pressure?
What factor primarily determines the viscosity of blood?
What factor primarily determines the viscosity of blood?
What does Mean Arterial Pressure (MAP) represent?
What does Mean Arterial Pressure (MAP) represent?
Why are veins considered as blood reservoirs?
Why are veins considered as blood reservoirs?
What is the purpose of the skeletal muscle pump in the venous system?
What is the purpose of the skeletal muscle pump in the venous system?
Which of the following molecules can move through intercellular clefts in capillaries?
Which of the following molecules can move through intercellular clefts in capillaries?
What is the function of the lymphatic system in the vascular system?
What is the function of the lymphatic system in the vascular system?
What is the primary function of bulk flow in capillary exchange?
What is the primary function of bulk flow in capillary exchange?
Which hormone targets the kidneys to reabsorb water, thereby increasing blood volume and pressure?
Which hormone targets the kidneys to reabsorb water, thereby increasing blood volume and pressure?
What is the main role of Renin-Angiotensin-Aldosterone mechanism in the vascular system?
What is the main role of Renin-Angiotensin-Aldosterone mechanism in the vascular system?
Which of the following hormones suppresses renin, antidiuretic hormone (ADH), and aldosterone secretion?
Which of the following hormones suppresses renin, antidiuretic hormone (ADH), and aldosterone secretion?