Circulatory System
Biology ⇒ Human Biology
Circulatory System starts at 6 and continues till grade 12.
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See sample questions for grade 10
A patient has a blockage in the coronary arteries. Explain how this could affect the heart.
Describe one way in which the structure of capillaries is adapted to their function.
Describe the main difference between systemic and pulmonary circulation.
Describe the path of blood flow through the heart, starting from the right atrium.
A patient has a blockage in the coronary arteries. Explain how this could affect the heart.
Explain why a person with a damaged bone marrow may have problems with their circulatory system.
A patient’s blood pressure is measured as 150/95 mmHg. Explain what these two numbers represent and why high blood pressure can be dangerous.
A person has a genetic disorder that causes their red blood cells to be abnormally shaped. Predict and explain how this might affect their circulatory system.
What is the normal average resting heart rate for a healthy adult? (1) 30-40 bpm (2) 60-100 bpm (3) 120-140 bpm (4) 150-180 bpm
Which blood vessel carries oxygenated blood from the lungs to the heart? (1) Pulmonary artery (2) Pulmonary vein (3) Aorta (4) Vena cava
Which blood vessel returns deoxygenated blood from the body to the right atrium? (1) Pulmonary vein (2) Aorta (3) Vena cava (4) Coronary artery
Which chamber of the human heart receives deoxygenated blood from the body? (1) Left atrium (2) Right atrium (3) Left ventricle (4) Right ventricle
Fill in the blank: The _______ circuit carries blood between the heart and the lungs.
Fill in the blank: The _______ is the fluid part of blood that carries cells and dissolved substances.
Fill in the blank: The _______ node acts as the natural pacemaker of the heart.
Fill in the blank: The _______ valve prevents the backflow of blood from the left ventricle to the left atrium.
True or False: All veins carry deoxygenated blood.
True or False: Capillaries are the site of exchange of gases, nutrients, and waste between blood and tissues.
True or False: The circulatory system helps regulate body temperature.
True or False: The heart is an involuntary muscle.
