Circulatory System and Heart - Numerical Applications

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This section focuses on numerical, quantitative, and data-based problems related to heart function and blood circulation. It is designed for Class 11–12 students, NEET aspirants, and undergraduate learners to strengthen their ability to apply cardiovascular concepts using calculations and logical reasoning.

In this section, you will practice:

  • Numerical problems based on cardiac output, heart rate, and stroke volume

  • Calculations involving blood pressure and flow dynamics

  • Data interpretation questions on ECG readings

  • Graph-based problems on cardiac cycle and pressure changes

  • Numerical analysis of oxygen transport and circulation efficiency

  • Table- and chart-based questions related to cardiovascular parameters

  • NCERT-aligned numerical questions and exam-oriented practice sets

The content is structured to improve step-by-step analytical skills, enhance data interpretation, and help students confidently handle numerical and logic-based questions in school examinations, NEET, and undergraduate assessments.

Develop speed, accuracy, and confidence in solving numerical applications related to the circulatory system and heart through systematic practice.

Q. How many chambers does the human heart have?
  • A. 4
  • B. 3
  • C. 2
  • D. 5
Q. How much blood does the average adult human heart pump per minute at rest?
  • A. 4-6 liters
  • B. 1-2 liters
  • C. 8-10 liters
  • D. 10-12 liters
Q. If a person's heart rate is 75 beats per minute, what is their cardiac output if the stroke volume is 70 mL?
  • A. 5.25 L/min
  • B. 4.5 L/min
  • C. 6.0 L/min
  • D. 3.0 L/min
Q. What is the average blood pressure in a healthy adult?
  • A. 120/80 mmHg
  • B. 140/90 mmHg
  • C. 100/60 mmHg
  • D. 130/85 mmHg
Q. What is the average heart rate of a healthy adult at rest?
  • A. 60-100 beats per minute
  • B. 40-60 beats per minute
  • C. 100-120 beats per minute
  • D. 120-140 beats per minute
Q. What is the average lifespan of a red blood cell?
  • A. 120 days
  • B. 30 days
  • C. 60 days
  • D. 90 days
Q. What is the primary function of red blood cells?
  • A. Transport oxygen
  • B. Fight infections
  • C. Clot blood
  • D. Regulate temperature
Q. What is the stroke volume of a healthy adult heart?
  • A. 70 mL
  • B. 50 mL
  • C. 100 mL
  • D. 30 mL
Q. What percentage of blood volume is typically plasma in a healthy adult?
  • A. 55%
  • B. 45%
  • C. 65%
  • D. 75%
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