NEET Biology: Body Fluids and Circulation — MCQ Test 6

Q6. Which part of the heart has the thickest wall?

Q7. Which of the following statements about the structure of the heart is incorrect?

Q8. Which of the following statements about the cardiac cycle is correct?

Q9. Which of the following is correct about cardiac output?

Q10. Which blood vessels carry oxygenated blood to the heart?

NEET Biology — Body Fluids and Circulation

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Which blood cells are the largest in size?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Body Fluids and Circulation. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Following, Statements, Pressure, Incorrect, Prevents, and Backflow.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which blood cells are the largest in size?

  • A. Erythrocytes
  • B. Neutrophils
  • C. Lymphocytes
  • D. Monocytes

Q2. Which of the following is correct about the role of the AV node?

  • A. It generates the heartbeat independently.
  • B. It slows down the electrical impulse before it reaches the ventricles.
  • C. It is located in the left ventricle.
  • D. It transmits signals directly to the Purkinje fibers.

Q3. Which of the following statements about ECG is correct?

  • A. The P-wave represents ventricular contraction.
  • B. The QRS complex represents ventricular depolarization.
  • C. The T-wave represents atrial depolarization.
  • D. ECG does not measure electrical activity of the heart.

Q4. Which of the following statements about blood pressure is incorrect?

  • A. Systolic pressure is higher than diastolic pressure.
  • B. Diastolic pressure occurs when the ventricles contract.
  • C. A normal blood pressure reading is around 120/80 mmHg.
  • D. Blood pressure is measured using a sphygmomanometer.

Q5. Which heart valve prevents the backflow of blood from the aorta into the left ventricle?

  • A. Tricuspid valve
  • B. Pulmonary valve
  • C. Aortic valve
  • D. Mitral valve

+ 5 more questions in the actual test

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