Circulatory System
Biology ⇒ Human Biology
Circulatory System starts at 6 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Circulatory System.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A person has a mutation that causes their red blood cells to be sickle-shaped. What is the likely effect on their circulatory system?
Calculate the cardiac output if the heart rate is 75 beats per minute and the stroke volume is 70 mL per beat.
Describe the effect of regular aerobic exercise on the circulatory system.
Describe the main function of the circulatory system in humans.
Describe the pathway of blood from the right atrium to the left ventricle.
Describe the role of the lymphatic system in relation to the circulatory system.
Explain how blood pressure is regulated in the human body.
Explain the difference between systemic and pulmonary circulation.
Explain the role of valves in the heart.
Explain what is meant by 'double circulation' in humans.
Explain why the left ventricle has a thicker wall than the right ventricle.
Name the valve located between the left atrium and the left ventricle.
What is the main difference between arteries and veins in terms of structure?
What is the main function of hemoglobin in red blood cells?
A patient is found to have a mutation that causes their blood vessels to lose elasticity. Predict and explain the likely effects on their blood pressure and overall circulatory health.
A person has a stroke volume of 80 mL and a cardiac output of 5.6 L per minute. Calculate their heart rate in beats per minute.
Compare and contrast the structure and function of continuous, fenestrated, and sinusoidal capillaries.
Describe the Frank-Starling law of the heart and its significance in cardiac physiology.
Explain how the autonomic nervous system regulates heart rate during the 'fight or flight' response.
Explain the physiological consequences of a blockage in the coronary arteries and discuss how this can lead to a myocardial infarction.
