Body Fluids and Circulation Chapter-Wise Test 10

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is incorrect about the lymphatic system?

It helps in fat absorption.
It transports oxygen to tissues.
It plays a role in immune responses.
It drains excess interstitial fluid.
2

The lymphatic system does not transport oxygen; it mainly helps in immune defense and fat absorption.

Which of the following is incorrect about capillaries?

Capillaries connect arterioles and venules.
Capillaries have thick walls for strength.
Capillaries allow exchange of gases and nutrients.
Capillaries are the smallest blood vessels.
2

Capillaries have thin, single-layered walls to facilitate exchange of gases, nutrients, and waste.

Which part of the heart acts as the pacemaker?

AV node
Purkinje fibers
Sinoatrial node
Bundle of His
3

The Sinoatrial (SA) node generates electrical impulses to regulate the heartbeat.

Which of the following blood cells helps in allergic reactions and parasitic infections?

Neutrophils
Basophils
Eosinophils
Monocytes
3

Eosinophils help in fighting parasitic infections and play a role in allergic reactions.

Which type of blood vessel is responsible for exchange of gases and nutrients?

Arteries
Veins
Capillaries
Venules
3

Capillaries are thin-walled blood vessels that allow the exchange of gases, nutrients, and waste between blood and tissues.

What is the primary function of the pulmonary artery?

Transport oxygenated blood to the body
Carry deoxygenated blood to the lungs
Supply oxygen to the heart muscle
Return blood from the lungs to the heart
2

The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs for oxygenation.

What is the major function of neutrophils in the immune system?

Production of antibodies
Secretion of histamine
Phagocytosis of pathogens
Blood clotting
3

Neutrophils are the first line of defense in immunity and act by engulfing and destroying pathogens.

Which heart chamber receives oxygenated blood from the lungs?

Right atrium
Right ventricle
Left atrium
Left ventricle
3

The left atrium receives oxygenated blood from the pulmonary veins.

Which of the following is correct about hypertension?

Hypertension is characterized by high blood pressure.
It has no effect on cardiovascular health.
It cannot be influenced by lifestyle changes.
Hypertension increases the risk of heart disease and stroke.
4

Hypertension increases the risk of heart diseases, strokes, and kidney damage.

Which of the following statements about arteries is incorrect?

Arteries always carry oxygenated blood.
Arteries have thick muscular walls.
Arteries transport blood away from the heart.
The aorta is the largest artery in the body.
1

Not all arteries carry oxygenated blood. The pulmonary artery carries deoxygenated blood to the lungs.

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