30 Questions
Which blood vessels are more distensible, arteries or veins?
Veins
What is the relationship between distensibility and compliance?
Distensibility is a component of compliance
What is the formula for compliance (C)?
C = increase in volume / increase in pressure
Which vessels have stronger walls, arteries or veins?
Arteries
What is the relationship between volume and compliance?
Volume is a component of compliance
What is the relationship between sympathetic stimulation and arterial compliance?
Sympathetic stimulation decreases arterial compliance
What is the relationship between sympathetic inhibition and venous compliance?
Sympathetic inhibition increases venous compliance
Which blood vessels have high compliance?
Veins
What is the most important factor in determining the quantity of blood that can be stored in a vessel?
Volume
Do arteries have any compliance?
Yes
Which of the following is true about blood pressure?
Blood pressure increases with age
What is the formula for calculating mean arterial pressure (MAP)?
MAP = DBP + 1/3 (SBP-DBP)
What is the role of veins in the circulation?
Pathway for blood to return to the heart
What happens to venous pressure when the veins are distended?
Venous pressure increases
What is the normal value for right atrial pressure (RAP)?
RAP = 0 mm Hg
What is the main function of the venous pump?
To compress veins and propel blood to the heart
What happens when venous valves fail?
Venous pressure increases
Which vessels have high compliance?
Veins
Where is most of the blood volume located?
Venous system
What is the site of most vascular resistance?
Arterial system
Which term refers to the ability of a vessel to stretch and hold volume?
Compliance
What is the mechanism used to maintain blood pressure constant during changes in blood volume?
Vascular Compliance
What is the difference between systolic and diastolic pressure called?
Pulse Pressure
What influences the shape of the aorta pressure trace?
Arterial Distensibility
What is the ratio that determines pulse pressure?
Stroke Volume (SV) to Compliance (C)
What is the term for the progressive diminution of pulsations?
Dampening
What method is used to indirectly measure blood pressure using a cuff and stethoscope?
Auscultatory or 'cuff' method
What method is the most precise for measuring blood pressure?
Cannula needle method
What is the average blood pressure over time called?
Mean Arterial Pressure (MAP)
What is the formula for calculating mean arterial pressure (MAP)?
MAP = DBP + \frac{1}{3}(SBP-DBP)
Test your knowledge on vascular distensibility and the functions of the arterial and venous systems in this quiz. Learn about the ability of blood vessels to dilate in response to pressure and the important roles of veins and arteries in the body.
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