Body Fluids and Circulation NEET Questions

Body fluids play a vital role in circulation within the human body. Blood, a major body fluid, transports oxygen, nutrients, hormones, and waste products. It circulates through a network of blood vessels, including arteries, veins, and capillaries. The heart serves as the central pump that propels blood throughout the body. Lymph, another body fluid, helps maintain fluid balance and immunity. The proper circulation of body fluids ensures the delivery of essential substances and the removal of waste, supporting overall health and function.

Here are some MCQs related to the Body Fluids and Circulation for the NEET exam:

1. Which of the following is the fluid component of blood?

1. Plasma
2. Serum
3. Lymph
4. Cerebrospinal fluid

Answer: a. Plasma

2. Which of the following is not a function of blood?

1. Transport of nutrients and gases
2. Maintenance of body temperature
3. Protection against infection
4. Production of enzymes and hormones

Answer: d. Production of enzymes and hormones

3. Which of the following is not a component of the cardiovascular system?

1. Heart
2. Blood vessels
3. Lungs
4. Blood

Answer: c. Lungs

4. Which of the following is the smallest blood vessel in the body?

1. Vein
2. Artery
3. Capillary
4. Aorta

Answer: c. Capillary

5. Which of the following is not a type of blood vessel?

1. Vein
2. Artery
3. Capillary
4. Lymphatic vessel

Answer: d. Lymphatic vessel

6. Which of the following is the correct sequence of blood flow through the heart?

1. Right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta
2. Right atrium, left atrium, right ventricle, left ventricle, pulmonary artery, lungs, pulmonary vein, aorta
3. Left atrium, left ventricle, pulmonary vein, lungs, pulmonary artery, right atrium, right ventricle, aorta
4. Left atrium, right atrium, left ventricle, right ventricle, pulmonary vein, lungs, pulmonary artery, aorta

Answer: a. Right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta

7. Which of the following is the correct sequence of events during the cardiac cycle?

1. Atrial systole, ventricular systole, isovolumetric relaxation, ventricular diastole
2. Ventricular diastole, atrial systole, ventricular systole, isovolumetric relaxation
3. Isovolumetric relaxation, atrial systole, ventricular diastole, ventricular systole
4. Ventricular systole, atrial systole, isovolumetric relaxation, ventricular diastole

Answer: a. Atrial systole, ventricular systole, isovolumetric relaxation, ventricular diastole

8. Which of the following is the hormone responsible for regulating blood pressure and volume?

1. Aldosterone
2. Antidiuretic hormone
3. Angiotensin II
4. Atrial natriuretic peptide

Answer: c. Angiotensin II

9. Which of the following is the main function of the lymphatic system?

1. Transport of oxygen and nutrients to tissues
2. Removal of waste products from tissues
3. Protection against infection
4. Regulation of blood pressure

Answer: c. Protection against infection

10. Which of the following is the term used to describe the force exerted by blood against the walls of blood vessels?

1. Blood pressure
2. Heart rate
3. Stroke volume
4. Cardiac output

Answer: a. Blood pressure