Circulatory System
Biology ⇒ Human Biology
Circulatory System starts at 6 and continues till grade 12.
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See sample questions for grade 6
Describe what happens to blood as it passes through the lungs.
Describe what would happen if the valves in veins did not work properly.
Explain why exercise is good for the circulatory system.
Explain why the walls of the left ventricle are thicker than those of the right ventricle.
What is the function of the septum in the heart?
What is the main difference between arteries and veins?
What is the main function of the circulatory system?
What is the main function of white blood cells?
Which blood vessels have valves to prevent backflow of blood?
(1) Arteries
(2) Veins
(3) Capillaries
(4) All of the above
Which chamber of the heart receives oxygen-poor blood from the body?
(1) Left atrium
(2) Right atrium
(3) Left ventricle
(4) Right ventricle
Which of the following best describes the function of capillaries?
(1) Carry blood away from the heart
(2) Exchange gases and nutrients between blood and tissues
(3) Return blood to the heart
(4) Store blood
Which of the following is a function of the circulatory system?
(1) Digestion
(2) Transporting oxygen
(3) Producing sound
(4) Controlling movement
Fill in the blank: The ________ returns oxygen-rich blood from the lungs to the heart.
Fill in the blank: The ________ system works closely with the circulatory system to deliver oxygen to the body.
Fill in the blank: The ________ ventricle pumps oxygen-rich blood to the body.
Fill in the blank: The heart has ________ chambers.
True or False: Blood flows in only one direction through the heart.
True or False: Blood in the arteries is always rich in oxygen.
True or False: The circulatory system helps regulate body temperature.
True or False: The circulatory system helps remove waste products from the body.
