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  4. Body Fluids and Circulation Chapter-Wise Test 3

Body Fluids and Circulation Chapter-Wise Test 3

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is incorrect about arteries?

They carry blood away from the heart.
They have thick, muscular walls.
They always carry oxygenated blood.
They experience high blood pressure.
3

The **pulmonary arteries** carry deoxygenated blood from the heart to the lungs.

Which chamber of the heart receives deoxygenated blood from the body?

Right atrium
Right ventricle
Left atrium
Left ventricle
1

The right atrium receives deoxygenated blood from the body via the superior and inferior vena cava.

Which of the following is correct about the Rh factor?

Rh-positive individuals lack Rh antigens.
Rh-negative individuals can safely receive Rh-positive blood.
Rh factor is important during pregnancy.
Rh factor determines universal blood donors.
3

Rh incompatibility between an Rh-negative mother and Rh-positive fetus can cause **erythroblastosis fetalis**.

Which condition results from the failure of the left ventricle to pump blood efficiently?

Arrhythmia
Congestive heart failure
Hypertension
Atherosclerosis
2

Congestive heart failure occurs when the left ventricle fails to pump blood effectively, leading to fluid buildup in the lungs.

Which of the following is correct about hypertension?

It refers to abnormally low blood pressure.
It can damage blood vessels over time.
It only affects elderly individuals.
It is not influenced by diet and exercise.
2

**Hypertension** can damage arteries, increasing the risk of heart disease and stroke.

Which blood vessels have the smallest diameter?

Arteries
Veins
Capillaries
Arterioles
3

Capillaries have the smallest diameter, allowing exchange of gases and nutrients at the tissue level.

Which of the following disorders is characterized by an abnormally high number of white blood cells?

Leukemia
Hemophilia
Thrombocytopenia
Erythrocytosis
1

Leukemia is a cancer of white blood cells, leading to their excessive production.

Which of the following is incorrect about hemoglobin?

Hemoglobin is a protein found in RBCs.
It binds with oxygen for transport.
It does not contain iron.
It also helps transport carbon dioxide.
3

Hemoglobin contains **iron**, which binds to oxygen for transport in the blood.

Which of the following statements about arteries is correct?

Arteries always carry oxygenated blood.
Arteries have thick muscular walls to withstand high pressure.
Arteries transport blood toward the heart.
Arteries have valves to prevent backflow of blood.
2

**Arteries have thick muscular walls** to withstand **high blood pressure** exerted by the pumping action of the heart.

Which of the following is incorrect regarding blood circulation?

Systemic circulation carries oxygenated blood to body tissues.
Pulmonary circulation removes carbon dioxide from blood.
The right ventricle pumps oxygen-rich blood into the aorta.
The left atrium receives blood from pulmonary veins.
3

The **right ventricle pumps deoxygenated blood** into the pulmonary artery, not the aorta.

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