Circulatory System
Biology ⇒ Human Biology
Circulatory System starts at 6 and continues till grade 12.
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See sample questions for grade 11
Describe the path of blood flow through the heart, starting from the right atrium.
Describe the structure and function of a capillary.
During which phase of the cardiac cycle does the heart muscle contract and pump blood?
Explain how blood pressure is regulated in the human body.
Explain the difference between systemic and pulmonary circulation.
Explain the role of hemoglobin in the circulatory system.
Explain why the left ventricle has a thicker wall than the right ventricle.
A patient has a blood pressure reading of 140/90 mmHg. Is this considered normal? (Yes/No)
Which blood vessels have valves to prevent backflow of blood?
(1) Arteries
(2) Veins
(3) Capillaries
(4) All of the above
Which of the following best describes the function of platelets?
(1) Oxygen transport
(2) Blood clotting
(3) Immune response
(4) Hormone transport
Which of the following best describes the function of the pericardium?
(1) Pumps blood
(2) Protects and anchors the heart
(3) Produces red blood cells
(4) Filters blood
Which of the following is a function of plasma in the blood?
(1) Carrying oxygen
(2) Blood clotting
(3) Transporting nutrients and waste products
(4) Destroying pathogens
The ________ node is also known as the pacemaker of the heart.
The ________ valve prevents backflow of blood from the right ventricle to the right atrium.
The exchange of gases and nutrients between blood and tissues occurs in the ________.
The heart is made up of ________ layers: epicardium, myocardium, and endocardium.
A patient has a blood pressure reading of 140/90 mmHg. Is this considered normal? (Yes/No)
True or False: Capillaries are the smallest blood vessels in the body.
True or False: The left ventricle has thicker walls than the right ventricle.
True or False: The pulmonary artery carries oxygenated blood from the heart to the lungs.
