TOPICAL TEST SCIENCE CIRCULATORY SYSTEM & UNIT OF LIFE

A human body in average has

• 1-2 litres of blood

• 3-4 litres of blood

• 4-6 litres of blood

• 2-3 litres of blood

Where does the exchange of gases takes place and blood is oxygenated -

• Heart

• Lungs

• Brain

• Kidney

How much a normal heart beats per minute -

• 18

• 47

• 109

• 72

The upper limit of blood pressure is -

• 150 mm Hg

• 200 mm Hg

• 120 mm Hg

• 380 mm Hg

Doctors use which instrument to listen the heartbeat -

• Thermometer

• Suction Device

• Sphygmomanometer

• Stethoscope

Hypertension increases the risk of -

• Heart disease

• Influenza

• Pneumonia

• All of the above

Process by which blood is transferred from one person to another -

• Diastolic pressure

• Hypertension

• Palpitation

• Blood transfusion

Which of the following blood cells are involved in blood clotting?

• Red Blood Cells

• Leucocytes

• Thrombocytes

• Erythrocytes

to keep the heart healthy, we must:

• not exercise

• drink enough water

• eat burgers and pizzas daily

• maintain our body weight

Which of the following is not part of the circulatory system

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