General Science & Healthcare•Updated for 2026 Competitive Exams
Best 40 MCQS on Circulatory System
Practice top multiple choice questions (MCQs), topic summary, and verified answers for Best 40 MCQS on Circulatory System. Essential for Central & State competitive examinations. Solve these high-frequency practice questions with step-by-step solutions to evaluate your preparation level.
Attempt Timed Mock TestInstant Scorecard & Negative Marking
Practice Questions & Explanations (40 Questions)
50:50 Lifeline & Instant Feedback Enabled
Q1NEET / SSCMedium
What is the main function of the circulatory system?
Q2NEET / SSCMedium
The human heart has how many chambers?
Q3NEET / SSCMedium
Which blood vessels carry oxygenated blood away from the heart?
Sponsored Advertisement
Ad Space • Google AdSense Partner Network
Q4NEET / SSCMedium
Which is the largest artery in the human body?
Q5NEET / SSCMedium
Which blood vessel carries deoxygenated blood from the heart to the lungs?
Q6NEET / SSCMedium
Which blood vessels carry blood back to the heart?
Q7NEET / SSCMedium
What prevents the backflow of blood in veins?
Q8NEET / SSCMedium
The exchange of gases, nutrients, and waste occurs in which blood vessels?
Q9NEET / SSCMedium
What is the fluid component of blood called?
Q10NEET / SSCMedium
Which cells in the blood carry oxygen?
Q11NEET / SSCMedium
What is the scientific name for red blood cells?
Q12NEET / SSCMedium
Which component of blood is primarily responsible for fighting infections?
Q13NEET / SSCMedium
What is the scientific name for white blood cells?
Q14NEET / SSCMedium
Which blood component is crucial for blood clotting?
Q15NEET / SSCMedium
What is the normal resting heart rate for an adult?
Q16NEET / SSCMedium
Which chamber of the heart pumps oxygenated blood to the rest of the body?
Q17NEET / SSCMedium
Which chamber receives deoxygenated blood from the body?
Q18NEET / SSCMedium
The 'lub-dub' sound of the heart is caused by:
Q19NEET / SSCMedium
What is the natural pacemaker of the heart?
Q20NEET / SSCMedium
The pulmonary circulation carries blood between the heart and:
Q21NEET / SSCMedium
The systemic circulation carries blood between the heart and:
Q22NEET / SSCMedium
What is a normal blood pressure reading for a healthy adult?
Q23NEET / SSCMedium
The top number in a blood pressure reading represents:
Q24NEET / SSCMedium
The bottom number in a blood pressure reading represents:
Q25NEET / SSCMedium
Which blood type is known as the universal donor?
Q26NEET / SSCMedium
Which blood type is known as the universal recipient?
Q27NEET / SSCMedium
The protein in red blood cells that binds oxygen is:
Q28NEET / SSCMedium
A condition characterized by a deficiency of red blood cells or hemoglobin is:
Q29NEET / SSCMedium
A genetic disorder where blood does not clot properly is:
Q30NEET / SSCMedium
The buildup of plaque in the arteries is called:
Q31NEET / SSCMedium
What is the term for a heart attack?
Q32NEET / SSCMedium
Blood flowing from the lungs enters which chamber of the heart?
Q33NEET / SSCMedium
What separates the left and right sides of the heart?
Q34NEET / SSCMedium
Which valve is located between the left atrium and left ventricle?
Q35NEET / SSCMedium
Which valve is located between the right atrium and right ventricle?
Q36NEET / SSCMedium
What is the sac that surrounds and protects the heart called?
Q37NEET / SSCMedium
Which vessels supply the heart muscle itself with oxygenated blood?
Q38NEET / SSCMedium
A condition where the heart beats irregularly, too fast, or too slow is called:
Q39NEET / SSCMedium
The process of white blood cells engulfing bacteria is called:
Q40NEET / SSCMedium
Lymphatic vessels eventually return lymph fluid to the:
Chapter Completed
Ready to test your accuracy under exam pressure?
Take full-length mock tests designed in the authentic TCS-iON CBT interface with countdown timer and negative marking.