Body Fluids and Circulation Chapter-Wise Test 13

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following statements about the pericardium is correct?

The pericardium is a double-layered membrane surrounding the heart.
It is made of cardiac muscle tissue.
It generates electrical impulses for heart contraction.
It does not contain any fluid.
1

The pericardium is a double-layered membrane filled with pericardial fluid, which reduces friction during heartbeats.

Which circulatory pathway is responsible for transporting oxygenated blood to body tissues?

Pulmonary circulation
Systemic circulation
Hepatic portal circulation
Coronary circulation
2

Systemic circulation carries oxygenated blood from the heart to the body's tissues and returns deoxygenated blood back to the heart.

Which organ is responsible for filtering and removing old red blood cells?

Liver
Spleen
Kidney
Bone marrow
2

The spleen acts as the "graveyard of RBCs," breaking down old and damaged red blood cells.

Which condition is characterized by low red blood cell count?

Leukemia
Anemia
Thrombocytopenia
Polycythemia
2

Anemia is a condition where there is a deficiency of red blood cells or hemoglobin in the blood.

Which of the following statements about blood pressure is incorrect?

Blood pressure is the force exerted by blood on blood vessel walls.
Normal blood pressure is approximately 120/80 mmHg.
Diastolic pressure occurs when the heart contracts.
Systolic pressure occurs when blood is ejected from the heart.
3

Diastolic pressure occurs when the heart relaxes, while systolic pressure occurs when the heart contracts.

Which of the following statements about cardiac muscle is incorrect?

Cardiac muscle is involuntary.
Cardiac muscle fibers are multinucleated like skeletal muscle.
Cardiac muscle cells have intercalated discs.
Cardiac muscle contracts rhythmically without neural stimulation.
2

Cardiac muscle fibers are uninucleated, unlike skeletal muscle fibers, which are multinucleated.

Which of the following is correct about the hepatic portal system?

It transports oxygenated blood to the liver.
It carries nutrient-rich blood from the intestine to the liver.
It carries deoxygenated blood directly to the kidneys.
It is responsible for pumping blood into the lungs.
2

The hepatic portal system carries nutrient-rich blood from the intestine to the liver for metabolism before entering systemic circulation.

What is the function of hemoglobin in the blood?

Blood clotting
Oxygen transport
Immune response
Nutrient absorption
2

Hemoglobin binds with oxygen in the lungs and transports it to body tissues.

Which of the following can cause erythroblastosis fetalis?

ABO incompatibility
Rh incompatibility
Low platelet count
Iron deficiency
2

Erythroblastosis fetalis occurs when an Rh-negative mother carries an Rh-positive fetus.

Which of the following is correct about veins?

Veins always carry deoxygenated blood.
Veins transport blood under low pressure.
Veins lack valves to prevent backflow of blood.
Veins carry blood away from the heart.
2

Veins carry blood under low pressure and have valves to prevent backflow.

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