30 Questions
Which of the following factors affects stroke volume by increasing the force of contraction in the heart?
Contractility
What is the equation for calculating ejection fraction?
SV/EDV
Which of the following factors causes an increase in heart rate?
Sympathetic nervous system
What is the main reason for a decrease in venous return during heavy exercise?
Tired heart muscles
What is the equation for calculating cardiac output?
Q = SV x HR
Which of the following factors causes an increase in stroke volume during standing to running?
Muscle pump
What is the main factor that affects stroke volume by increasing the degree of stretching experienced by the muscle cell in the heart during diastole?
Preload
What is the equation for calculating the heart rate-pressure product (RPP)?
RPP = SBP x HR
What is the main reason for a decrease in stroke volume during heavy exercise?
Increased heart rate
Which of the following factors causes an increase in heart rate due to excessive decrease in heart rate?
Fasal Vagal Response
Which term refers to the total amount of volume of blood pumped by the heart per minute?
Cardiac Output
What is the equation for calculating Cardiac Output?
CO = SV x HR
During which phase of the cardiac cycle does the heart fill up with blood?
Diastole
What is the equation for calculating Stroke Volume?
SV = EDV - ESV
What happens to Stroke Volume as exercise intensity increases?
It increases
What is the average Stroke Volume per beat?
70 mL
What is the term used to describe the phase before heart contractions?
End-diastolic volume (EDV)
What is the term used to describe the phase before heart release?
End-systolic volume (ESV)
What happens to End-diastolic volume (EDV) and End-systolic volume (ESV) as you start exercising?
EDV rises, ESV drops
What is the equation for calculating Cardiac Output in terms of Stroke Volume (SV) and Heart Rate (HR)?
CO = SV x HR
Which equation represents the relationship between pressure, flow, and resistance in the cardiovascular system?
$P = F \times R$
Which of the following correctly explains why systolic blood pressure increases with exercise?
Increased cardiac output
What is the mean arterial pressure (MAP) if the systolic blood pressure (SBP) is 120 mmHg and the diastolic blood pressure (DBP) is 80 mmHg?
106.7 mmHg
What is the pulse pressure if the systolic blood pressure (SBP) is 120 mmHg and the diastolic blood pressure (DBP) is 80 mmHg?
53.3 mmHg
Which of the following correctly explains the relationship between pressure and flow in the cardiovascular system?
If pressure increases, flow will increase
According to Poiseuille's Law, how does an increase in vessel diameter affect blood flow rate?
Increases blood flow rate
What is the resistance (R) if the pressure (P) is 100 mmHg and the flow (F) is 10 L/min?
1 mmHg/L/min
Which of the following correctly explains the relationship between vasodilation and blood flow?
Vasodilation increases blood flow
What is the relationship between shear stress and viscosity in the cardiovascular system?
More shear stress decreases viscosity
What is the relationship between blood flow and pressure in the cardiovascular system?
Blood flow is directly related to pressure
Test your knowledge on the cardiovascular system and its functions in this quiz. Learn about how oxygen is delivered to muscles, the role of the heart and blood vessels, nutrient delivery, waste removal, thermoregulation, clotting, communication, hormone regulation, immune response, pH buffering, and more.
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